This document provides an overview of dengue fever, including its etiology, epidemiology, clinical presentation, diagnosis, complications and management. Some key points include:
- Dengue fever is caused by the dengue virus and transmitted by Aedes mosquitoes. There are four serotypes.
- It is prevalent in tropical and subtropical regions and cases have been increasing worldwide due to factors like increased travel and urbanization.
- Clinical presentation depends on whether it is a primary or secondary infection. Secondary infections are more likely to develop into severe dengue hemorrhagic fever or dengue shock syndrome.
- Diagnosis involves serological tests to detect IgM and IgG antibodies or the NS1 antigen. C
This document provides information on Dengue fever, including:
- It is caused by Dengue viruses 1-4 and transmitted by Aedes mosquitoes. Infection provides lifetime immunity to one serotype but not others.
- Symptoms range from mild fever to severe dengue hemorrhagic fever/dengue shock syndrome. Secondary infections carry higher risk of severe disease.
- Diagnosis involves physical exam, laboratory tests like platelet count and serology. There is no vaccine or antiviral treatment, only supportive care like fluids and fever control. Prevention focuses on mosquito control and avoidance of bites.
The document provides an overview of dengue fever, including its history, global burden, virus, vector, transmission, pathogenesis, clinical manifestations, diagnosis, and management. Some key points:
- Dengue is caused by the dengue virus and transmitted by Aedes aegypti mosquitoes. It ranges from a self-limiting fever to life-threatening dengue hemorrhagic fever/shock syndrome.
- There are 4 serotypes of the virus. Secondary infection with a new serotype increases the risk of severe disease.
- Over 2.5 billion people in over 100 countries are at risk annually, with up to 50 million infections and 22,000 deaths mainly in children.
-
This document discusses dengue virus, which is transmitted by mosquitoes and causes dengue fever and dengue hemorrhagic fever. It describes the four serotypes of the dengue virus and their modes of transmission. It outlines the signs and symptoms of dengue fever, dengue hemorrhagic fever, and dengue shock syndrome. It also discusses laboratory tests for diagnosis and clinical management, including fluid resuscitation protocols. The goal of treatment is to manage fluid levels and output during the critical phase of potential plasma leakage while avoiding fluid overload.
Dengue fever is a mosquito-borne viral disease that has rapidly spread worldwide. In Nepal, dengue is endemic and cases have increased in recent years. Between January and September 2022, over 28,000 suspected and confirmed dengue cases and 38 deaths were reported in Nepal, affecting all seven provinces. Dengue virus has four serotypes and infection provides long-term immunity to one serotype but not others, increasing risk for severe dengue from sequential infections. The disease is transmitted by Aedes aegypti mosquitoes and has a 2-7 day viremic phase in humans. Symptoms include an acute flu-like illness that progresses through febrile, critical and recovery phases, with potential for severe
Aetiology,pathophysiology and diagnosis of dengue infectionLee Oi Wah
The document discusses dengue virus, which causes dengue fever and dengue hemorrhagic fever. It is transmitted by mosquitoes and has four serotypes. It also causes lifelong immunity to one serotype but temporary cross-immunity. The document covers dengue's pathophysiology, symptoms, classification, diagnosis and surveillance data from Perak from 2002-2007.
Dengue fever is a mosquito-borne viral disease transmitted by Aedes aegypti and Aedes albopictus mosquitoes. It is caused by the dengue virus, of which there are four serotypes. The disease places a large burden globally, with most cases occurring in Asia. Clinical manifestations range from a self-limiting flu-like illness to severe dengue, which can be fatal if not properly treated. Diagnosis involves virus detection, antigen testing, or serology. There is no vaccine or specific antiviral treatment, so management focuses on fluid replacement and symptom relief. Complications include bleeding, organ impairment, and fluid imbalance.
Dengue fever is an acute infectious viral disease transmitted by mosquitoes of the genus Aedes. It is caused by infection with one of four serotypes of the dengue virus. Symptoms include high fever with joint pain and headache. A secondary infection with a different serotype poses greater risks, as antibodies from the first infection can enhance the second virus's entry. This can lead to potentially fatal hemorrhagic dengue. To prevent secondary infection, people should reduce exposure to mosquitoes by using repellents, sleeping under nets, and eliminating stagnant water near their homes.
The document discusses dengue, its causative virus, transmission cycle, clinical manifestations, diagnosis, and management in children. It describes how the dengue virus is transmitted between humans and mosquitoes, the four serotypes of the virus, and the typical 3 phase clinical course of dengue fever and dengue hemorrhagic fever. It provides guidelines for classifying and managing patients based on symptoms and severity, including outpatient and inpatient treatment and criteria for discharge.
This document provides information on Dengue fever, including:
- It is caused by Dengue viruses 1-4 and transmitted by Aedes mosquitoes. Infection provides lifetime immunity to one serotype but not others.
- Symptoms range from mild fever to severe dengue hemorrhagic fever/dengue shock syndrome. Secondary infections carry higher risk of severe disease.
- Diagnosis involves physical exam, laboratory tests like platelet count and serology. There is no vaccine or antiviral treatment, only supportive care like fluids and fever control. Prevention focuses on mosquito control and avoidance of bites.
The document provides an overview of dengue fever, including its history, global burden, virus, vector, transmission, pathogenesis, clinical manifestations, diagnosis, and management. Some key points:
- Dengue is caused by the dengue virus and transmitted by Aedes aegypti mosquitoes. It ranges from a self-limiting fever to life-threatening dengue hemorrhagic fever/shock syndrome.
- There are 4 serotypes of the virus. Secondary infection with a new serotype increases the risk of severe disease.
- Over 2.5 billion people in over 100 countries are at risk annually, with up to 50 million infections and 22,000 deaths mainly in children.
-
This document discusses dengue virus, which is transmitted by mosquitoes and causes dengue fever and dengue hemorrhagic fever. It describes the four serotypes of the dengue virus and their modes of transmission. It outlines the signs and symptoms of dengue fever, dengue hemorrhagic fever, and dengue shock syndrome. It also discusses laboratory tests for diagnosis and clinical management, including fluid resuscitation protocols. The goal of treatment is to manage fluid levels and output during the critical phase of potential plasma leakage while avoiding fluid overload.
Dengue fever is a mosquito-borne viral disease that has rapidly spread worldwide. In Nepal, dengue is endemic and cases have increased in recent years. Between January and September 2022, over 28,000 suspected and confirmed dengue cases and 38 deaths were reported in Nepal, affecting all seven provinces. Dengue virus has four serotypes and infection provides long-term immunity to one serotype but not others, increasing risk for severe dengue from sequential infections. The disease is transmitted by Aedes aegypti mosquitoes and has a 2-7 day viremic phase in humans. Symptoms include an acute flu-like illness that progresses through febrile, critical and recovery phases, with potential for severe
Aetiology,pathophysiology and diagnosis of dengue infectionLee Oi Wah
The document discusses dengue virus, which causes dengue fever and dengue hemorrhagic fever. It is transmitted by mosquitoes and has four serotypes. It also causes lifelong immunity to one serotype but temporary cross-immunity. The document covers dengue's pathophysiology, symptoms, classification, diagnosis and surveillance data from Perak from 2002-2007.
Dengue fever is a mosquito-borne viral disease transmitted by Aedes aegypti and Aedes albopictus mosquitoes. It is caused by the dengue virus, of which there are four serotypes. The disease places a large burden globally, with most cases occurring in Asia. Clinical manifestations range from a self-limiting flu-like illness to severe dengue, which can be fatal if not properly treated. Diagnosis involves virus detection, antigen testing, or serology. There is no vaccine or specific antiviral treatment, so management focuses on fluid replacement and symptom relief. Complications include bleeding, organ impairment, and fluid imbalance.
Dengue fever is an acute infectious viral disease transmitted by mosquitoes of the genus Aedes. It is caused by infection with one of four serotypes of the dengue virus. Symptoms include high fever with joint pain and headache. A secondary infection with a different serotype poses greater risks, as antibodies from the first infection can enhance the second virus's entry. This can lead to potentially fatal hemorrhagic dengue. To prevent secondary infection, people should reduce exposure to mosquitoes by using repellents, sleeping under nets, and eliminating stagnant water near their homes.
The document discusses dengue, its causative virus, transmission cycle, clinical manifestations, diagnosis, and management in children. It describes how the dengue virus is transmitted between humans and mosquitoes, the four serotypes of the virus, and the typical 3 phase clinical course of dengue fever and dengue hemorrhagic fever. It provides guidelines for classifying and managing patients based on symptoms and severity, including outpatient and inpatient treatment and criteria for discharge.
Dengue fever is an infectious tropical disease caused by the dengue virus and transmitted by several species of mosquito, principally Aedes aegypti. The virus causes a fever and severe joint and muscle pains. In some cases it develops into life-threatening dengue hemorrhagic fever or dengue shock syndrome, resulting in bleeding, low blood pressure and organ dysfunction. There is no vaccine, so prevention depends on controlling mosquito habitats and bites. Nurses monitor hydration and blood products in severe cases and educate people on preventing mosquito breeding.
Dengue is a self limited acute febrile condition and sometimes
haemorrhagic, primarily transmitted to the humans from
infected Aedes species ( Ae. aegypti or Ae. albopictus ).
Dengue Syndrome will be discussed in following headings
1.Epidemiology
2. Manifestation
3. Clinical presentation,
4. Diagnosis
5. Treatment
6. Prevention & Control
This document discusses Dengue hemorrhagic fever and Dengue shock syndrome (DSS). It describes that dengue is caused by a flavivirus transmitted by Aedes mosquitoes. There are four serotypes of the dengue virus. It then explains the typical progression and symptoms of dengue fever including the febrile, critical, and recovery phases. It outlines the case definitions for probable/confirmed dengue fever, dengue hemorrhagic fever, and DSS. The document also discusses the pathogenesis of DHF/DSS including immune mechanisms and capillary leakage. It provides details on clinical manifestations, laboratory diagnosis, and management approaches depending on the severity of the case.
Dengue is a mosquito-borne viral infection affecting over 100 countries. It is transmitted by the Aedes mosquito and risks have grown dramatically with around 50 million cases estimated annually. Symptoms range from fever and joint pain to potentially lethal hemorrhagic fever. There is no vaccine yet so prevention depends on avoiding mosquito bites and reducing breeding habitats.
This document summarizes clinical manifestations of dengue fever, dengue hemorrhagic fever, and dengue shock syndrome. It describes how dengue is caused by a virus transmitted by Aedes mosquitos. It outlines the disease progression from primary to secondary infection and discusses disease definitions. Key points include four clinical syndromes, hemorrhagic manifestations, thrombocytopenia, and signs of circulatory failure in dengue shock syndrome.
The document summarizes information about dengue fever, including:
1. Dengue fever is caused by the dengue virus and transmitted by Aedes mosquitoes, primarily Aedes aegypti.
2. Aedes aegypti prefers to lay eggs in artificial containers near humans and feeds primarily on people.
3. There are four types of dengue virus; infection with one type usually provides lifelong immunity to that type but only short-term immunity to others, increasing risk of severe illness from a different type in subsequent infections.
This document discusses dengue in children, including its epidemiology, etiology, pathogenesis, clinical manifestations, management, and differential diagnosis. Some key points:
- Dengue is a mosquito-borne viral disease spread by Aedes mosquitoes and endemic in most parts of the world except Europe. It has four serotypes.
- The virus causes capillary damage and fluid leakage, which can lead to hypovolemia, shock, organ dysfunction, and hemorrhage in severe cases. Secondary infection with a new serotype increases risk.
- Clinical phases include fever, critical, and recovery. Warning signs like abdominal pain, vomiting indicate risk of severe disease. Management involves fluid management, monitoring for shock
A mosquito-borne viral disease occurring in tropical and subtropical areas.
Spreads by animals or insects
Requires a medical diagnosis
Lab tests or imaging often required
Short-term: resolves within days to weeks
Those who become infected with the virus a second time are at a significantly greater risk of developing severe disease.
Symptoms include high fever, headache, rash and muscle and joint pain. In severe cases there is serious bleeding and shock, which can be life threatening.
Treatment includes fluids and pain relievers. Severe cases require hospital care.
- Dengue fever is a mosquito-borne viral infection caused by any of four dengue virus serotypes. It is a major public health problem in tropical and subtropical parts of the world.
- The disease ranges from a mild fever to potentially lethal dengue hemorrhagic fever. It is transmitted by the bites of infected Aedes mosquitoes, most commonly Aedes aegypti.
- There is no vaccine or antiviral medication available, so treatment is supportive and focused on relieving symptoms. Prevention relies on reducing mosquito habitats and biting exposure through vector control measures.
The document discusses dengue, which is endemic in many countries in Southeast Asia and the Western Pacific. It categorizes countries in Southeast Asia based on their dengue situation. India is experiencing an increase in dengue risk due to factors like rapid urbanization and lifestyle changes. The dengue virus has four serotypes and infection with one provides immunity to that serotype. Secondary infection or infection with multiple serotypes can cause severe dengue hemorrhagic fever. The Aedes mosquito transmits dengue virus between humans. Environmental factors like rainfall and temperature affect mosquito populations and transmission rates.
Dengue fever is an acute, self-limited, febrile disease caused by dengue virus and transmitted by Aedes aegypti mosquitoes. It occurs in two forms: dengue fever and dengue hemorrhagic fever. Dengue fever involves fever, headache, rash and joint pain while dengue hemorrhagic fever involves high fever, bleeding, organ involvement and signs of circulatory failure. Diagnosis involves clinical presentation and serological tests to detect antibodies or viral components. Treatment focuses on fluid replacement and supportive care, with monitoring to prevent shock in dengue hemorrhagic fever cases. Prevention emphasizes mosquito control and personal protection measures.
Dengue is a mosquito-borne viral infection found worldwide in tropical and subtropical regions. It is transmitted by the Aedes aegypti mosquito. The document discusses the definition, epidemiology, virus, transmission cycle, clinical stages and symptoms, investigations, diagnosis, treatment, prevention and control of dengue fever. Key points include that dengue is caused by four distinct virus serotypes, causes flu-like symptoms and in severe cases can lead to dengue hemorrhagic fever or dengue shock syndrome, and prevention focuses on eliminating mosquito breeding sites and seeking early medical care if infected.
The document provides guidelines on dengue infection, discussing the clinical syndromes of dengue fever and dengue hemorrhagic fever, their diagnosis and classification, management approaches including fluid resuscitation, and treatment of complications. It describes dengue virus and the disease it causes, including its pathophysiology, clinical course, and atypical manifestations. Risk factors, vectors, and the immune response to primary and secondary infections are also covered.
Now a days.All the World is facing a serious problem..Dengue
so i make a presentation on dengue to prevent and aware from dengue...and if you have dengue faver then which types of treatment you use for your Health.
The document discusses dengue virus, its transmission and clinical manifestations. Some key points:
- Dengue virus is transmitted by Aedes aegypti mosquitoes and has 4 serotypes. It causes dengue fever and the more severe dengue hemorrhagic fever/dengue shock syndrome.
- The disease progresses through febrile, critical, and recovery phases. During the critical phase, plasma leakage and bleeding can cause shock.
- Symptoms range from mild fever to severe bleeding, organ impairment and shock. Thrombocytopenia is common.
- Diagnosis is based on clinical criteria and confirmed with serology, antigen or PCR testing. There is no vaccine and treatment focuses
Dengue fever is a prevalent mosquito-borne illness caused by dengue virus and transmitted by Aedes aegypti mosquitoes. It affects over 100 countries and causes 50-100 million infections annually. The disease presentation varies from a nonspecific viral syndrome to severe dengue hemorrhagic fever/dengue shock syndrome. There is no vaccine currently available and treatment involves supportive care, with careful fluid management needed for severe cases to prevent shock. Prevention relies on personal protection from mosquito bites and reducing mosquito breeding sites.
Dengue (pronounced DENG-gay) can affect anyone but tends to be more severe in people with compromised immune systems. Because it is caused by one of four serotypes of virus, it is possible to get dengue fever multiple times. However, an attack of dengue produces immunity for a lifetime to that particular serotype to which the patient was exposed.
1) Dengue fever is caused by mosquitoes of the genus Aedes, mainly A. aegypti, and is prevalent during rainy seasons when mosquito populations increase. Improper waste disposal also contributes to mosquito propagation.
2) Dengue virus consists of 4 serotypes that cause disease in humans. Major epidemics have occurred across Asia and there have been recent outbreaks in Pakistan.
3) Clinical presentation ranges from mild dengue fever to severe dengue hemorrhagic fever/dengue shock syndrome. Outpatient management is usually sufficient but hospitalization may be needed for dehydration, bleeding, or low platelet count. Prevention relies on environmental controls and public education.
Dr Deepak Dadhich DENGUE FEVER ppt under guidance of Dr Jitendra Verma Sir Pr...HakunaMatata198441
Dengue is caused by four serotypes of dengue virus transmitted by Aedes mosquitoes. The document discusses the pathophysiology, classification, clinical presentation, investigations and management of dengue. It describes the three phases of illness - febrile, critical and recovery phase. Treatment involves symptomatic relief and careful fluid management to prevent complications of plasma leakage and shock. Hospital admission is required if warning signs or severe symptoms are present.
A mosquito-borne viral disease occurring in tropical and subtropical areas.
Those who become infected with the virus a second time are at a significantly greater risk of developing severe disease.
Symptoms include high fever, headache, rash and muscle and joint pain. In severe cases there is serious bleeding and shock, which can be life threatening.
Treatment includes fluids and pain relievers. Severe cases require hospital care.
Dengue fever is an infectious tropical disease caused by the dengue virus and transmitted by several species of mosquito, principally Aedes aegypti. The virus causes a fever and severe joint and muscle pains. In some cases it develops into life-threatening dengue hemorrhagic fever or dengue shock syndrome, resulting in bleeding, low blood pressure and organ dysfunction. There is no vaccine, so prevention depends on controlling mosquito habitats and bites. Nurses monitor hydration and blood products in severe cases and educate people on preventing mosquito breeding.
Dengue is a self limited acute febrile condition and sometimes
haemorrhagic, primarily transmitted to the humans from
infected Aedes species ( Ae. aegypti or Ae. albopictus ).
Dengue Syndrome will be discussed in following headings
1.Epidemiology
2. Manifestation
3. Clinical presentation,
4. Diagnosis
5. Treatment
6. Prevention & Control
This document discusses Dengue hemorrhagic fever and Dengue shock syndrome (DSS). It describes that dengue is caused by a flavivirus transmitted by Aedes mosquitoes. There are four serotypes of the dengue virus. It then explains the typical progression and symptoms of dengue fever including the febrile, critical, and recovery phases. It outlines the case definitions for probable/confirmed dengue fever, dengue hemorrhagic fever, and DSS. The document also discusses the pathogenesis of DHF/DSS including immune mechanisms and capillary leakage. It provides details on clinical manifestations, laboratory diagnosis, and management approaches depending on the severity of the case.
Dengue is a mosquito-borne viral infection affecting over 100 countries. It is transmitted by the Aedes mosquito and risks have grown dramatically with around 50 million cases estimated annually. Symptoms range from fever and joint pain to potentially lethal hemorrhagic fever. There is no vaccine yet so prevention depends on avoiding mosquito bites and reducing breeding habitats.
This document summarizes clinical manifestations of dengue fever, dengue hemorrhagic fever, and dengue shock syndrome. It describes how dengue is caused by a virus transmitted by Aedes mosquitos. It outlines the disease progression from primary to secondary infection and discusses disease definitions. Key points include four clinical syndromes, hemorrhagic manifestations, thrombocytopenia, and signs of circulatory failure in dengue shock syndrome.
The document summarizes information about dengue fever, including:
1. Dengue fever is caused by the dengue virus and transmitted by Aedes mosquitoes, primarily Aedes aegypti.
2. Aedes aegypti prefers to lay eggs in artificial containers near humans and feeds primarily on people.
3. There are four types of dengue virus; infection with one type usually provides lifelong immunity to that type but only short-term immunity to others, increasing risk of severe illness from a different type in subsequent infections.
This document discusses dengue in children, including its epidemiology, etiology, pathogenesis, clinical manifestations, management, and differential diagnosis. Some key points:
- Dengue is a mosquito-borne viral disease spread by Aedes mosquitoes and endemic in most parts of the world except Europe. It has four serotypes.
- The virus causes capillary damage and fluid leakage, which can lead to hypovolemia, shock, organ dysfunction, and hemorrhage in severe cases. Secondary infection with a new serotype increases risk.
- Clinical phases include fever, critical, and recovery. Warning signs like abdominal pain, vomiting indicate risk of severe disease. Management involves fluid management, monitoring for shock
A mosquito-borne viral disease occurring in tropical and subtropical areas.
Spreads by animals or insects
Requires a medical diagnosis
Lab tests or imaging often required
Short-term: resolves within days to weeks
Those who become infected with the virus a second time are at a significantly greater risk of developing severe disease.
Symptoms include high fever, headache, rash and muscle and joint pain. In severe cases there is serious bleeding and shock, which can be life threatening.
Treatment includes fluids and pain relievers. Severe cases require hospital care.
- Dengue fever is a mosquito-borne viral infection caused by any of four dengue virus serotypes. It is a major public health problem in tropical and subtropical parts of the world.
- The disease ranges from a mild fever to potentially lethal dengue hemorrhagic fever. It is transmitted by the bites of infected Aedes mosquitoes, most commonly Aedes aegypti.
- There is no vaccine or antiviral medication available, so treatment is supportive and focused on relieving symptoms. Prevention relies on reducing mosquito habitats and biting exposure through vector control measures.
The document discusses dengue, which is endemic in many countries in Southeast Asia and the Western Pacific. It categorizes countries in Southeast Asia based on their dengue situation. India is experiencing an increase in dengue risk due to factors like rapid urbanization and lifestyle changes. The dengue virus has four serotypes and infection with one provides immunity to that serotype. Secondary infection or infection with multiple serotypes can cause severe dengue hemorrhagic fever. The Aedes mosquito transmits dengue virus between humans. Environmental factors like rainfall and temperature affect mosquito populations and transmission rates.
Dengue fever is an acute, self-limited, febrile disease caused by dengue virus and transmitted by Aedes aegypti mosquitoes. It occurs in two forms: dengue fever and dengue hemorrhagic fever. Dengue fever involves fever, headache, rash and joint pain while dengue hemorrhagic fever involves high fever, bleeding, organ involvement and signs of circulatory failure. Diagnosis involves clinical presentation and serological tests to detect antibodies or viral components. Treatment focuses on fluid replacement and supportive care, with monitoring to prevent shock in dengue hemorrhagic fever cases. Prevention emphasizes mosquito control and personal protection measures.
Dengue is a mosquito-borne viral infection found worldwide in tropical and subtropical regions. It is transmitted by the Aedes aegypti mosquito. The document discusses the definition, epidemiology, virus, transmission cycle, clinical stages and symptoms, investigations, diagnosis, treatment, prevention and control of dengue fever. Key points include that dengue is caused by four distinct virus serotypes, causes flu-like symptoms and in severe cases can lead to dengue hemorrhagic fever or dengue shock syndrome, and prevention focuses on eliminating mosquito breeding sites and seeking early medical care if infected.
The document provides guidelines on dengue infection, discussing the clinical syndromes of dengue fever and dengue hemorrhagic fever, their diagnosis and classification, management approaches including fluid resuscitation, and treatment of complications. It describes dengue virus and the disease it causes, including its pathophysiology, clinical course, and atypical manifestations. Risk factors, vectors, and the immune response to primary and secondary infections are also covered.
Now a days.All the World is facing a serious problem..Dengue
so i make a presentation on dengue to prevent and aware from dengue...and if you have dengue faver then which types of treatment you use for your Health.
The document discusses dengue virus, its transmission and clinical manifestations. Some key points:
- Dengue virus is transmitted by Aedes aegypti mosquitoes and has 4 serotypes. It causes dengue fever and the more severe dengue hemorrhagic fever/dengue shock syndrome.
- The disease progresses through febrile, critical, and recovery phases. During the critical phase, plasma leakage and bleeding can cause shock.
- Symptoms range from mild fever to severe bleeding, organ impairment and shock. Thrombocytopenia is common.
- Diagnosis is based on clinical criteria and confirmed with serology, antigen or PCR testing. There is no vaccine and treatment focuses
Dengue fever is a prevalent mosquito-borne illness caused by dengue virus and transmitted by Aedes aegypti mosquitoes. It affects over 100 countries and causes 50-100 million infections annually. The disease presentation varies from a nonspecific viral syndrome to severe dengue hemorrhagic fever/dengue shock syndrome. There is no vaccine currently available and treatment involves supportive care, with careful fluid management needed for severe cases to prevent shock. Prevention relies on personal protection from mosquito bites and reducing mosquito breeding sites.
Dengue (pronounced DENG-gay) can affect anyone but tends to be more severe in people with compromised immune systems. Because it is caused by one of four serotypes of virus, it is possible to get dengue fever multiple times. However, an attack of dengue produces immunity for a lifetime to that particular serotype to which the patient was exposed.
1) Dengue fever is caused by mosquitoes of the genus Aedes, mainly A. aegypti, and is prevalent during rainy seasons when mosquito populations increase. Improper waste disposal also contributes to mosquito propagation.
2) Dengue virus consists of 4 serotypes that cause disease in humans. Major epidemics have occurred across Asia and there have been recent outbreaks in Pakistan.
3) Clinical presentation ranges from mild dengue fever to severe dengue hemorrhagic fever/dengue shock syndrome. Outpatient management is usually sufficient but hospitalization may be needed for dehydration, bleeding, or low platelet count. Prevention relies on environmental controls and public education.
Dr Deepak Dadhich DENGUE FEVER ppt under guidance of Dr Jitendra Verma Sir Pr...HakunaMatata198441
Dengue is caused by four serotypes of dengue virus transmitted by Aedes mosquitoes. The document discusses the pathophysiology, classification, clinical presentation, investigations and management of dengue. It describes the three phases of illness - febrile, critical and recovery phase. Treatment involves symptomatic relief and careful fluid management to prevent complications of plasma leakage and shock. Hospital admission is required if warning signs or severe symptoms are present.
A mosquito-borne viral disease occurring in tropical and subtropical areas.
Those who become infected with the virus a second time are at a significantly greater risk of developing severe disease.
Symptoms include high fever, headache, rash and muscle and joint pain. In severe cases there is serious bleeding and shock, which can be life threatening.
Treatment includes fluids and pain relievers. Severe cases require hospital care.
1. The document provides guidelines for diagnosing and treating dengue fever, which is caused by the dengue virus and transmitted by Aedes aegypti mosquitoes.
2. It outlines the typical phases of dengue illness - febrile, critical, and recovery phase - and describes the clinical manifestations at each stage.
3. Patients are classified into groups - A, B, or C - depending on severity of symptoms and need for home care versus hospital admission and management. Close monitoring is important to watch for warning signs and progression to more severe disease.
This document provides an overview of dengue fever, including its causes, transmission, global impact, and prevention. Some key points:
- Dengue fever is a viral disease transmitted by Aedes mosquitoes, primarily Aedes aegypti. There are 4 types of dengue viruses.
- It affects over 50 million people annually worldwide and is a major public health challenge in many tropical and subtropical countries, including the Philippines.
- Transmission occurs when an infected mosquito bites a person and transmits the virus. There is typically an incubation period of 4-7 days before symptoms appear.
- Symptoms range from mild fever to severe dengue hemorrhagic fever. Treatment depends on
Dengue, DHF, DSS, PREVENTION, MANAGEMENT, TREATMENTDr-Hem Shah
Dengue is a viral disease transmitted by mosquitoes. It causes flu-like symptoms including fever, headache, muscle and joint pains, and rash. In some cases it can develop into severe dengue hemorrhagic fever or dengue shock syndrome, resulting in bleeding, low blood pressure and organ failure. Diagnosis is usually clinical based on symptoms and signs. Treatment focuses on fluid replacement and symptom relief. Prevention involves controlling mosquito breeding sites and using protective measures against mosquito bites. Homeopathy offers several remedies that can help manage symptoms and aid recovery from dengue fever.
Dengue, DHF, DSS, prevention, prognosis and its managementDr. Hem Shah
Dengue is a viral disease transmitted by mosquitoes. It causes flu-like symptoms including fever, headache, muscle and joint pains, and rash. In some cases it can develop into severe dengue hemorrhagic fever or dengue shock syndrome, resulting in bleeding, low blood pressure and organ failure. Diagnosis is usually clinical based on symptoms and signs. Treatment focuses on fluid replacement and symptom relief. Prevention involves controlling mosquito breeding sites and using protective measures against mosquito bites. Homeopathy offers several remedies that can help manage symptoms and aid recovery from dengue fever.
As an intern house officer, I prepared this presentation after I came across a rare case of dengue fever complicated by hemophagocytic lymphohistiocytosis (HLH). Dengue fever itself is a rare disease entity in the UAE, as a developed country; and the presence of such a complication merely added to the complexity of the diagnosis. Therefore, I am delighted to share this lively PowerPoint Presentation about dengue, which was initially supplemented with an interesting case presentation but was removed for confidentiality purposes when sharing the document. I hope you enjoy it!
PS: Use the slideshow button in Microsoft PowerPoint for the best experience.
Dengue is a mosquito-borne viral disease that has been an increasing problem in India. It is transmitted by the Aedes aegypti mosquito. There are typically two peaks of dengue outbreaks annually in India. The number of reported cases and deaths has been increasing, with over 99,000 cases and 220 deaths in 2015. The goal of the Global Strategy for Dengue Prevention and Control is to reduce dengue mortality by at least 50% and morbidity by 25% by 2020 through reducing mosquito populations, public education, and emergency response planning. Diagnosis involves virus isolation, antibody detection, or PCR testing. There is no vaccine for dengue prevention currently.
This document provides information on dengue case management for the pediatric age group. It discusses:
- The epidemiology of dengue fever globally and in India, noting it is a mosquito-borne illness transmitted by Aedes aegypti with seasonal peaks from July to November.
- The genetic structure and life cycle of the dengue virus, which has four distinct serotypes. Secondary infections pose a higher risk of developing severe dengue.
- Methods for laboratory diagnosis of dengue including NS1 antigen detection, serology tests, RT-PCR and virus isolation. Sensitivity and specificity of different tests are provided.
- Considerations for dengue in specific pediatric populations like neonates and infants, who
Dengue fever is caused by the dengue virus transmitted by mosquitoes. It causes flu-like symptoms including fever, headache, muscle and joint pains. There are four types of dengue virus. Infection provides lifetime immunity to one type but only temporary protection against others. The disease progresses through febrile, critical, and recovery phases. In the critical phase, plasma leakage can cause dengue hemorrhagic fever or dengue shock syndrome, medical emergencies characterized by bleeding and circulatory failure. Diagnosis involves antigen and antibody testing. Treatment is supportive with rest and fluid replacement. Prevention focuses on controlling mosquito breeding habitats.
This document provides information on Dengue virus, the mosquito vector Aedes aegypti, pathogenesis of Dengue fever and severe Dengue, classification of Dengue cases, investigations for diagnosis, and management approaches. It describes Dengue as a major public health problem spread by Aedes mosquitoes in tropical regions. It also covers Dengue virus properties, the four serotypes, and structural and non-structural proteins. Classification systems for Dengue fever, Dengue hemorrhagic fever, and Dengue shock syndrome are presented based on symptoms and lab findings.
Dengue fever is the fastest emerging arboviral infection spread
by Aedes mosquitoes with major public health consequences in
over 100 tropical and sub-tropical countries in South-East Asia,
the Western Pacific, and South and Central America. Up to 2.5
billion people globally live under the threat of dengue fever and its
severe forms—dengue hemorrhagic fever (DHF) or dengue shock
syndrome (DSS). More than 75% of these people, or approximately
1.8 billion, live in the Asia-Pacific Region. As the disease spreads to
new geographical areas, the frequency of the outbreaks is increasing
along with changing disease epidemiology. It is estimated that 50
a million cases of dengue fever occur worldwide annually and half a
million people suffering from DHF require hospitalization each year,
a very large proportion of whom (approximately 90%) are children
less than five years old. About 2.5% of those affected with dengue
die of the disease.
Dengue virus rarely causes death. However, the infection can progress into a more serious condition known as severe dengue or dengue hemorrhagic fever. Symptoms of dengue hemorrhagic fever include: bleeding under the skin. frequent vomiting.
This document discusses liver involvement in exotic viral infections, focusing on Dengue fever and Yellow fever. The key points are:
1. The liver is often affected in exotic viral infections, either as the primary target organ or being only marginally affected. Dengue and Yellow fever commonly cause liver involvement.
2. Dengue fever commonly causes mild to moderate elevations in liver enzymes, especially AST, though severe hepatitis can occur in dengue hemorrhagic fever. The liver involvement in Dengue generally resolves within 3 weeks.
3. Yellow fever virus primarily targets the liver, causing hepatocyte apoptosis and Councilman bodies. Liver enzyme elevations are proportional to disease severity and elevated AST is more common than
Dengue fever is a mosquito-borne viral disease caused by the dengue virus. It is transmitted by the Aedes aegypti mosquito. The disease affects around 100 million people worldwide each year, with cases increasing dramatically in recent decades. Dengue fever causes high fever, severe headache, muscle and joint pains, and a characteristic skin rash. In a small percentage of cases, it can develop into severe dengue hemorrhagic fever or dengue shock syndrome, which can be life-threatening without proper medical treatment. There is no vaccine available for dengue prevention.
Dengue&dhf information for health care practitioners 2009Tonzaaton Oozaa
Dengue is a mosquito-borne viral disease with four serotypes. It is transmitted by Aedes mosquitoes, most commonly Aedes aegypti. While dengue fever causes high fever and joint pain, some patients develop dengue hemorrhagic fever or dengue shock syndrome, which can be fatal without treatment. Diagnosis involves virus isolation, PCR, or serologic testing for IgM antibodies. Treatment focuses on fluid replacement and monitoring for warning signs of severe disease.
Dengue fever is an acute febrile illness caused by infection with dengue virus transmitted by Aedes mosquitoes. It affects 50-100 million people annually and can develop into the potentially deadly dengue hemorrhagic fever. The document outlines the objectives, epidemiology, pathophysiology, stages, signs and symptoms, diagnosis, treatment and nursing management of dengue fever and dengue hemorrhagic fever. It emphasizes supportive care, fluid replacement, monitoring for shock, and preventing mosquito breeding to control the disease.
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4. INTRODUCTION
• Dengue fever is an acute infectious viral disease, also known as
breakbone fever
• Dengue is transmitted by mosquitoes of the genus.
• Dengue hemorrhagic fever is a fatal manifestation of dengue
virus that manifest with bleeding diathesis and hypovolemic
shock.
5. DENGUE VIRUS
• Flavi viruses: RNA
• Arbovirus group
• 4 serotypes – Den 1- 4
• Cycle involves humans and mosquitos
• Infection with one virus gives immunity to that serotype only
• Causes dengue and dengue hemorrhagic fever
6. EPIDEMIOLOGY
• First reported epidemics in 1779 –80 in Asia, Africa and North
America.
• Considered a mild non fatal disease
• Epidemics every 10-40 years due to introduction of new
serotype
• After World War II, pandemic of dengue which began in
Southeast Asia, expanded geographical distribution, epidemics
with multiple serotypes and emergence of DHF
7. • 1980s: a second re-expansion of DHF in Asia with epidemics in
India, Sri Lanka and Maldives, Taiwan, PRC; Africa and
Americas
• Progressively larger epidemics
• Primarily urban
9. DENGUE GLOBALLY
390 million dengue infections per year
22,000 deaths, mostly among children.
South America, South-East Asia and Western Pacific regions are the
most seriously affected.
10. Why the no. of cases keep increases worldwide ??
Increased air travel
Uneffective mosquito
control
Unreliable
drainage systems
Increasing
population
11. ETIOLOGY
• Vector - Aedes aegypti*
▪ bite during daytime
▪ Lays egg in clean & stagnant water
▪ Female feeds on blood
- Aedes alboticus
AEDES EGYPTI AEDES ALBOPTICUS
15. DENGUE CLASSIFICATION
There are actually four dengue clinical syndromes:
• Undifferentiated fever;
• Classic dengue fever;
• Dengue hemorrhagic fever, or DHF; and
• Dengue shock syndrome, or DSS.
• Dengue shock syndrome is actually a severe form of DHF.
16. Classic Dengue Fever
Dengue hemorrhagic
Fever
( > chances in ? )
Dengue Shock
Syndrome
In
critical
phase ,
Might
**Monitor
Warning
Signs***
Without or
without
haemorrhage
Clinical Manifestation
17. PATHOGENESIS OF PRIMARY INFECTION
Incubation period : 4-7 days (range 3-14)
Primary Dengue Infection – Self Limited
May also progress to severe dengue (DHF/DSS) (normally children,
elderly & immunocompromised
PATHOGENESIS OF SECONDARY INFECTION
“Antibody dependent enhancement mechanism”
Infection by
virus of
another
serotype
Production
of non
neutralizing
antibodies
Facilitate
entry of virus
to
monocytes
through Fc
Receptor
21. Febrile Phase x 7days
High fever 40 °C (104 °F)
headache
generalized arthalgia
myalgia
petechiae
bleeding from mucus membrane.
Arash occurs in 50–80%
22. Critical Phase x 2days
Leukopenia
thrombocytopenia.
Increase capillary permeability leading to plasma leakage that
lead to metabolic acidosis.
In children febrile phase is common carries nausea, vomiting,
thrombocytopnea.
23. Recovery phase x 2-3 days
Stabilize hemodynamic status
increase urine output
overall clinical improvement.
Increase in fluid overload can cause cerebral edema.
24. SIGN & SYMPTOMS of dengue( Based on WHO )
• Fever, Chills , ( more than 105 )
• headache
• Myalgia
• Arthralgia
• Retro-orbital pain
• Deep bone pain – “break bone fever”
• Rashes ( appear 4-5 days after fever )
• Positive Tourniquet
• Test
25. Symptoms – Dengue Fever Positive tourniquet test
Goal of the test :-
To asses fragility of capillary walls
To identify thrombocytopenia
In DHF grade 1, a positive tourniquet
test serves as the only indicator of
haemorrhagic tendency
• 20 or more petechiae per 1
square inch. (MOH MALAYSIA
2014)
26. WARNING SIGNS
• Severe abdominal pain
• Persistent vomiting
• Vomit with blood
• Drowsiness or irritability
• Dyspnoea
• Swollen lymph node
• Prostration
• diarrhea
Raised HCT, with rapid fall in platelet
Fever to hypothermia
Mucosal Bleed
Liver Enlargement
Normal Male Hct 40.7 to 50.3%
• Normal Female Hct: 36.1 to 44.3%
• The normal number of platelets in the
blood is 150,000 to 400,000 platelets per
microliter (mcL).
27. The 4 WHO Criteria for DHF
Fever
Hemorrhagic
manifestations(Symptoms)
Low platelet count (100,000/mm 3 or less
Elevated hematocrit ( >20% then normal)
or ( > 50% THEN BASELINE)
30. DENGUE SHOCK SYNDROME
• It can trigger Dengue Shock Syndrome
– Massive bleeding
– Death
– Dehydration
– Febrile convulsion
31. DIAGNOSIS
History Clinical Lab
• History tells us the endemic area, previous dengue infection and etc
• Clinical diagnosis are all the symptoms.
We can make only provisional diagnosis
• Lab Diagnosis is the confirmatory
32. Lab Diagnosis – Is the Confirmatory test
Tests include
1. Serological Test – ELISA – To Detect Antibody
2. Non Structural Protein (NS1 antigen) Test
These 2 tests are most widely used diagnostic test
OTHER TEST
1. Virus isolation
2. RT-PCR
33. 1. Non Structural Protein (NS1 antigen) Test
• Latest diagnostic tool for diagnosing dengue
• Useful in the diagnosing in the early phase (3 to 4 of illness) Some
times even from second day of illness
• But It is not useful after 5 days of illness .
• Criteria for primary infection
• Postive NS1 antigen
• Criteria for secondary infection
• Usually Negative NS1 antigen
• rarely Can be postive as well
34. 2. Serological Test by ELISA – To Detect
Antibody (Ig M and Ig G)
• Criteria for primary infection
Positive IgM after 5 to 7 days of illness
Ig G present after 7 days
• Criteria for secondary infection
Positive Ig G after 5 to 7 days onwards
Usually Absence or slight increase in IgM after 5 to 7 days onwards
35. Rapid Test Combo Kit
• SD BIOLINE Dengue Duo
• (To detect Dengue NS1 Ag and IgG/IgM in a single test )
36.
37. OTHER TEST
• Virus Isolation performed in the lab equipped with tissue culture and other
virus isolation facilities. blood should be collected before day 5 of illness –
before the formation of neutralizing antibodies.
• It may take up to two weeks to complete the test and it is expensive.
• PCR can be used as a diagnostic tool in early dengue infection .
• It is not recommended as a routine diagnostic test due to limited
availability and cost.
38. Lab Test for Provisional Diagnosis/ Screening Criteria
and disease monitoring purpose
Full Blood Count (FBC) White cell count (WCC) shows –
1 Leucopaenia
2 Thrombocytopaenia
3 Normal or raised HCT
39.
40. COMPLICATION
1 Febrile phase - Dehydration
2 Critical phase - Shock from plasma leakage: severe haemorrhage;
organ impairment = Dengue Shock Syndrome
3 Recovery phase - Hypervolaemia
A small percentage of individual who have dengue fever can develop a
more serious form of disease
• Dengue haemorrhagic fever and disseminated intravascular coagulation
• Hepatitis, cerebral haemorrhage or oedema, encephalitis,
• cranial nerve palsies, rhabdomyolysis, myocarditis
• Vertical transmission if infection within 5 wks of delivery
41. MOST OF YOU GET CONFUSED THAT
WHAT IS DENGUE HEMMORAHAGIC FEVER AND
DENGUE SHOCK SNDROME
ALWAYS REMEMBER
THEYARE THE COMPLICATION OF DENGUE FEVER
42. CONTROL AND PREVENTION
• Vector Control
• Individual Preventive Measures
• Immunization
- Sanofi Dengvaxia
- All for types
43. TREATMENT
• No specific treatment , only Supportive therapy
• No antiviral agents are of proven value
• Fluid replacement and Monitor the Ht and Platelet Count
MANAGEMENT
• Bleeding prevention & control
• Fluid & water replacement
• Symptoms relief & fever control
44. *Only* for severe cases ( DHF and DSS )
• Close monitoring of hypotension/shock
• IV. Infusion of crystalloids/colloids
• Oxygen administration
• Platelet transfusion
• Clotting factors replacement
45.
46. PROGNOSIS
• For the majority of peoples the people infected with dengue
virus fever the prognosis is excellent.
• Although they are likely to feel very ill during first 1-2 week of
acute illness.
• Overall the fatality rate is about 1% for all denge fever
infection.
47. REFERENCE
1. k. Park , park’s textbook of preventive and social medicine, February 2011, 21st Edition,
Published Banarsidas Bhanot Publishers
2. Nettina S. M., Lippincott manual of nursing practice ,2016, 10th edition, Jaypee
brothers.
3. James S R , Kristine N, Jean A., Nursing Careof Children: Principles and Practice, 2014,
4th Edition,Elsevier.
4. D. L. Wong, L. F.Whaley, Essentials of Pediatric Nursing ,January 15, 1997,5 th
edition,Mosby
5. Mentor : AP. DR. Durgadas , IMS – MSU
6. Book : Lange Microbiology 14th edition
7. Guidelines : MOH Malaysia 2014 and WHO 2014
8. Journal : International Medical Journal Malaysia ( IMJM)
9. Official Portal : Selangor Health Department
10. Online web site : Medscape
11. Picture Source : Flicker , Google Images