dengue

4,231 views

Published on

dengue

Published in: Education, Health & Medicine
1 Comment
3 Likes
Statistics
Notes
No Downloads
Views
Total views
4,231
On SlideShare
0
From Embeds
0
Number of Embeds
9
Actions
Shares
0
Downloads
274
Comments
1
Likes
3
Embeds 0
No embeds

No notes for slide

dengue

  1. 1. Group4 Class-9E
  2. 2. Contents: <ul><li>What is dengue fever? </li></ul><ul><li>What are dengue fever signs and symptoms? </li></ul><ul><li>What areas are at high risk for contracting dengue fever? </li></ul><ul><li>How is dengue fever contracted? </li></ul><ul><li>What is the treatment for dengue fever? </li></ul><ul><li>What is dengue hemorrhagic fever? </li></ul><ul><li>How can dengue fever be prevented? </li></ul><ul><li>Conclusion </li></ul>
  3. 3. What is dengue fever? <ul><li>Dengue fever is a disease caused by a family of viruses ( genus Flavivirus, family Flaviviridae) that are transmitted by mosquitoes ( Aedes aegypti ) . </li></ul><ul><li>It is an acute illness of sudden onset that usually follows a benign course with symptoms such as headache, fever, exhaustion, severe muscle and joint pain, swollen glands (lymphadenopathy), and rash. </li></ul>
  4. 5. Other names for Dengue <ul><li>Break bone fever- Victims of dengue often have contortions due to the intense joint and muscle pain. </li></ul><ul><li>Dandy fever- Slaves in the West Indies who contracted dengue said to have dandy fever because of their postures and gait. </li></ul>
  5. 6. Dengue triad <ul><li>fever </li></ul><ul><li>rash </li></ul><ul><li>headache </li></ul>
  6. 7. What are dengue fever signs and symptoms? <ul><li>After being bitten by a mosquito carrying thevirus, the incubation period ranges from three to 15 (usually five to eight) days before the signs and symptoms of dengue appear. </li></ul>
  7. 8. <ul><li>Dengue starts with chills, headache, pain upon moving the eyes, and lower backache. </li></ul><ul><li>Painful aching in the legs and joints occurs during the first hours of illness. </li></ul><ul><li>The temperature rises quickly as high as 104 F (40 C), with relative slow heart rate (bradycardia) and low blood pressure (hypotension). </li></ul><ul><li>The eyes become reddened. </li></ul><ul><li>A flushing or pale pink rash comes over the face and then disappears. </li></ul>
  8. 9. <ul><li>The glands (lymph nodes) in the neck and groin are often swollen. </li></ul><ul><li>Fever and other signs of dengue last for two to four days, followed by </li></ul><ul><li>a rapid drop in body temperature with profuse sweating. </li></ul><ul><li>This precedes a period with </li></ul><ul><li>normal temperature and a sense of well-being that lasts about a day. </li></ul><ul><li>A second rapid rise in temperature follows. </li></ul>
  9. 10. <ul><li>A characteristic rash appears along with the fever and spreads from the extremities to cover the entire body except the face. </li></ul><ul><li>The palms and soles may be bright red and swollen. </li></ul><ul><li>hemorrhagic tendency (positive Tourniquet test, spontaneous bruising, bleeding from mucosa, gingiva, injection sites, etc.; vomiting blood, or bloody diarrhea) </li></ul>
  10. 11. How is dengue fever contracted? <ul><li>The virus is contracted from the bite of a striped Aedes aegypti mosquito that has previously bitten an infected person. The mosquito flourishes during rainy seasons but can breed in water-filled flower pots, plastic bags, and cans year-round. One mosquito bite can inflict the disease. </li></ul><ul><li>The virus is not contagious and cannot be spread directly from person to person.There must be a person-to-mosquito to-another-person pathway. </li></ul>
  11. 12. What is the treatment for dengue fever? <ul><li>There is no tested and approved </li></ul><ul><li>vaccine for the dengue flavivirus. </li></ul><ul><li>There is no specific medicine or antibiotic to treat it. </li></ul><ul><li>For typical dengue, the treatment is purely concerned with relief of the symptoms (symptomatic). Close monitoring of vital signs in the critical period </li></ul>
  12. 13. <ul><li>Rest and fluid intake for adequate hydration is important. </li></ul><ul><li>Supplementation with intravenous fluids may be necessary to prevent dehydration and significant concentration of the blood if the patient is unable to maintain oral intake. </li></ul><ul><li>Acetaminophen (Tylenol) and codeine may be given for severe headache and for the joint and muscle pain (myalgia) </li></ul>
  13. 14. What is dengue hemorrhagic fever? <ul><li>A more severe form of the viral illness </li></ul><ul><li>Tends to affect children under 10 years of age. </li></ul><ul><li>It causes abdominal pain hemorrhage (bleeding) circulatory collapse (shock). </li></ul><ul><li>DHF starts abruptly with high continuous fever and headache. </li></ul><ul><li>There are respiratory and intestinal symptoms with sore throat, cough, nausea, vomiting, and abdominal pain. </li></ul>
  14. 15. <ul><li>Shock occurs two to six days after the start of symptoms with sudden collapse, cool, clammy extremities, weak pulse, and blueness around the mouth. </li></ul>
  15. 16. Manifestations include: <ul><li>Petechiae (small red or purple blisters under the skin) </li></ul><ul><li>Black stools, or easy bruising are all possible signs of hemorrhage </li></ul><ul><li>spitting up blood (hematemesis) </li></ul><ul><li>blood in the stool (melena) </li></ul><ul><li>bleeding gums, and nosebleeds (epistaxis) </li></ul><ul><li>Pneumonia is common, and inflammation of the heart (myocarditis) may be present. </li></ul>
  16. 17. <ul><li>Patients with DHF must be monitored closely for the first few days since shock may occur or recur precipitously (dengue shock syndrome). </li></ul><ul><li>Cyanotic (bluish) patients are given oxygen. Vascular collapse (shock) requires immediate fluid replacement. </li></ul><ul><li>Blood transfusions may be needed to control bleeding. </li></ul><ul><li>The mortality (death) rate with DHF is significant. It ranges from 6%-30%. Most deaths occur in children. Infants under a year of age are especially at risk of dying from DHF. </li></ul>
  17. 18. <ul><li>. </li></ul>
  18. 19. How can dengue fever be prevented? <ul><li>The prevention of dengue requires control or eradication of the mosquitoes carrying the virus that causes dengue. </li></ul><ul><li>People are urged to empty stagnant water from old tires, trash cans, and flower pots. </li></ul><ul><li>To prevent mosquito bites, wear long pants and long sleeves or personal protection use mosquito repellant sprays </li></ul><ul><li>Avoid visiting places where dengue is endemic. </li></ul>
  19. 20. Conclusion <ul><li>Dengue virus is a currently a problematic global infection. Diagnosis via new molecular-based techniques have become a new hope for early diagnosis, but are still limited due to their costs and standardization. The possibility of treatment of dengue via antiviral drugs is still under investigation. </li></ul>
  20. 21. Power Point Presentation Computer
  21. 22. Thank You
  22. 23. Leader-Sharyaa Sharma Mukul Anand Cast - Mayank jain Tushar Sharma Varun Jain Naman Neha Bansal

×