1) Arthropod-borne viruses (arboviruses) are transmitted between hosts by mosquitoes, ticks, and sandflies. Some important arboviruses in Indonesia include dengue virus, chikungunya virus, Japanese encephalitis virus, and Zika virus.
2) Dengue virus is the most widespread arbovirus globally, with 50 million annual infections and 2.5 billion people at risk. It causes dengue fever and the potentially lethal dengue hemorrhagic fever/dengue shock syndrome.
3) Japanese encephalitis virus is a mosquito-borne virus that causes Japanese encephalitis, a severe disease with a 20-30% case fatality
It is about detailed management of dengue and malaria in adults and children with brief review of clinical history and diagnosis.
reference:
-latest WHO and CDC guidelines
-Nelson 21st edition
-Ghai-Essential Paediatrics 9th edition
-Harrison
It is about detailed management of dengue and malaria in adults and children with brief review of clinical history and diagnosis.
reference:
-latest WHO and CDC guidelines
-Nelson 21st edition
-Ghai-Essential Paediatrics 9th edition
-Harrison
Describes all about SARS CoV- 2 its introduction, epidemiology, life cycle of virus, its transmission, pathophysiology of the disease, its complications, diagnostic methods and management through different system of medicines.
The information regarding the dengue fever, Introduction, epidemiology, aetiology, symptoms, general management and prevention , along with one example of the journal club.
this presentation deals mainly with dengue as there has been multiple outbreaks in 2015 and etiological factors involved, current scenario in India, preventive and control measures for dengue, recent strains of dengue and recent vaccine trials of dengue vaccine.
Describes all about SARS CoV- 2 its introduction, epidemiology, life cycle of virus, its transmission, pathophysiology of the disease, its complications, diagnostic methods and management through different system of medicines.
The information regarding the dengue fever, Introduction, epidemiology, aetiology, symptoms, general management and prevention , along with one example of the journal club.
this presentation deals mainly with dengue as there has been multiple outbreaks in 2015 and etiological factors involved, current scenario in India, preventive and control measures for dengue, recent strains of dengue and recent vaccine trials of dengue vaccine.
Introduction
Some Recent Dengue Out breaks
Clinical manifestations of dengue
Problem statement
Epidemiological determinants
Transmission of disease
Clinical and Laboratory diagnosis
WHO classification and Grading of severity of dengue infection.
Guidelines for treatment:
Management of DHF Grade I, II, III and IV.
Indications for red cell and platelet transfusion.
Global and National strategies.
Conclusion &References.
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.
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Adv. biopharm. APPLICATION OF PHARMACOKINETICS : TARGETED DRUG DELIVERY SYSTEMSAkankshaAshtankar
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Overall life span (LS) was 1671.7±1721.6 days and cumulative 5YS reached 62.4%, 10 years – 50.4%, 20 years – 44.6%. 94 LCP lived more than 5 years without cancer (LS=2958.6±1723.6 days), 22 – more than 10 years (LS=5571±1841.8 days). 67 LCP died because of LC (LS=471.9±344 days). AT significantly improved 5YS (68% vs. 53.7%) (P=0.028 by log-rank test). Cox modeling displayed that 5YS of LCP significantly depended on: N0-N12, T3-4, blood cell circuit, cell ratio factors (ratio between cancer cells-CC and blood cells subpopulations), LC cell dynamics, recalcification time, heparin tolerance, prothrombin index, protein, AT, procedure type (P=0.000-0.031). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and N0-12 (rank=1), thrombocytes/CC (rank=2), segmented neutrophils/CC (3), eosinophils/CC (4), erythrocytes/CC (5), healthy cells/CC (6), lymphocytes/CC (7), stick neutrophils/CC (8), leucocytes/CC (9), monocytes/CC (10). Correct prediction of 5YS was 100% by neural networks computing (error=0.000; area under ROC curve=1.0).
These lecture slides, by Dr Sidra Arshad, offer a quick overview of the physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar lead (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
6. Describe the flow of current around the heart during the cardiac cycle
7. Discuss the placement and polarity of the leads of electrocardiograph
8. Describe the normal electrocardiograms recorded from the limb leads and explain the physiological basis of the different records that are obtained
9. Define mean electrical vector (axis) of the heart and give the normal range
10. Define the mean QRS vector
11. Describe the axes of leads (hexagonal reference system)
12. Comprehend the vectorial analysis of the normal ECG
13. Determine the mean electrical axis of the ventricular QRS and appreciate the mean axis deviation
14. Explain the concepts of current of injury, J point, and their significance
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. Chapter 3, Cardiology Explained, https://www.ncbi.nlm.nih.gov/books/NBK2214/
7. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
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5. Clinical Manifesta3ons
the clinicians’ decision as to where and how intensively the patient should be observed
and treated (i.e. triage, which is particularly useful in outbreaks), in more consistent
reporting in the national and international surveillance system, and as an end-point
measure in dengue vaccine and drug trials.
Figure 1.4 Suggested dengue case classification and levels of severity
Probable dengue
live in /travel to dengue endemic area.
Fever and 2 of the following criteria:
Laboratory-confirmed dengue
(important when no sign of plasma leakage)
Warning signs*
concurrent with rapid decrease
in platelet count
*(requiring strict observation and medical
intervention)
Severe plasma leakage
leading to:
distress
Severe bleeding
as evaluated by clinician
Severe organ involvement
CRITERIA FOR DENGUE ± WARNING SIGNS CRITERIA FOR SEVERE DENGUE
DENGUE ± WARNING SIGNS SEVERE DENGUE
1. Severe plasma leakage
2. Severe haemorrhage
3.Severe organ impairmentwithout
with warning
signs
6. Virology
¨ Single-stranded RNA virus
¨ Genus: Flavivirus
¨ Family: Flaviviridae
¨ Four serotypes DENV 1-4 possibly 5th serotype
¨ DENV-2 and -3 are associated with severe outcome
¨ AnJgen NS1 is useful for detecJon during acute
infecJon
9. Clinical Course
25
(where patients are first seen and evaluated) are critical in determining the clinical
outcome of dengue. A well-managed front-line response not only reduces the number
of unnecessary hospital admissions but also saves the lives of dengue patients. Early
notification of dengue cases seen in primary and secondary care is crucial for identifying
outbreaks and initiating an early response (Chapter 5). Differential diagnosis needs to
be considered (Textbox B).
Figure 2.1 The course of dengue illness*
Days of illness
Temperature
Potential clinical issues
Laboratory changes
Serology and virology
Dehydration Shock Reabsorption
bleeding fluid overload
1 2 3 4 5 6 7 8 9 10
Organ impairment
Hematocrit
Platelet
Viraemia
IgM/IgG
Febrile Critical Recovery phasesCourse of dengue illness:
40°
* Source: adapted from Yip (2) by chapter authors.
12. Clinical
excessive intravenous fluids have been administered. During the critical and/or recovery
phases, excessive fluid therapy is associated with pulmonary oedema or congestive
heart failure.
The various clinical problems during the different phases of dengue can be summarized
as in Table 2.1.
Table 2.1 Febrile, critical and recovery phases in dengue
1 Febrile phase Dehydration; high fever may cause neurological disturbances and febrile
seizures in young children
2 Critical phase Shock from plasma leakage; severe haemorrhage; organ impairment
3 Recovery phase Hypervolaemia (only if intravenous fluid therapy has been excessive and/or
has extended into this period)
2.1.4 Severe dengue
Severe dengue is defined by one or more of the following: (i) plasma leakage that may
lead to shock (dengue shock) and/or fluid accumulation, with or without respiratory
distress, and/or (ii) severe bleeding, and/or (iii) severe organ impairment.
As dengue vascular permeability progresses, hypovolaemia worsens and results in
shock. It usually takes place around defervescence, usually on day 4 or 5 (range
days 3–7) of illness, preceded by the warning signs. During the initial stage of shock,
13. Approach to Pa3ent with dengue Dengue: Guidelines for diagnosis, treatment, prevention and control
Table 2.2 A stepwise approach to the management of dengue
Step I. Overall assessment
I.1 History, including information on symptoms, past medical and family history
I.2 Physical examination, including full physical and mental assessment
I.3 Investigation, including routine laboratory and dengue-specific laboratory
Step II. Diagnosis, assessment of disease phase and severity
Step III. Management
III.1 Disease notification
III.2 Management decisions. Depending on the clinical manifestations and other circumstances,
patients may:
– be sent home (Group A);
– be referred for in-hospital management (Group B);
– require emergency treatment and urgent referral (Group C).
Section 2.3 gives treatment recommendations for the groups A–C.
14. Diagnos3cs
¨ Virus detecJon (SEM, PCR)
¨ AnJgen detecJon (NS1 ELISA/Rapid test)
¨ AnJbody detecJon (HAI, ELISA, rapid test)
¨ Sonography for ascites
¨ RLD CXR for pleural effusion (PEI > 5% (+))
Nature Reviews | Microbiology
Direct methods Indirect methods
Serology
IgM
Serology
IgG
Genome
detection
Virus
isolation
Antigen
detection
Opportunity
Specificity
developments in rapid
ogies offer the promise
ostics for case manage-
y detection of dengue
tics of an ‘ideal’ dengue
end on the purpose for
be used. BOX 1 shows
oduct specifications for
at could be used for case
eillance and outbreak
vaccine trials5
. The
r diagnosing a dengue
y from the onset of fever
ection; however, as not all
osed within this period,
test should be sensi-
Figure 1 | Comparative merits of direct and indirect laboratory methods for the diagnosis of
dengue infections. Opportunityreferstothefactthatantibodytestingisusuallythemostpractical
diagnostic option available.
EVALUATING DIAGNOSTICS | DENGUE
15. CHAPTER2
Compensated shock (systolic pressure
maintained but has signs of reduced perfusion)
Fluid resuscitation with isotonic crystalloid
5–10 ml/kg/hr over 1 hour
IV crystalloid 5–7 ml/kg/hr for 1–2
hours, then:
reduce to 3–5 ml/kg/hr for 2–4 hours;
reduce to 2–3 ml/kg/hr for 2–4 hours.
If patient continues to improve, fluid can be
further reduced.
Monitor HCT 6–8 hourly.
If the patient is not stable, act according
to HCT levels:
if HCT increases, consider bolus fluid
administration or increase fluid administration;
if HCT decreases, consider transfusion with
fresh whole transfusion.
Stop at 48 hours.
NOYES
HCT or high HCT
Administer 2nd bolus of fluid
10–20 ml/kg/hr for 1 hour
Consider significant occult/overt bleed
Initiate transfusion with fresh whole
blood
NOYES
If patient improves, reduce to
7–10 ml/kg/hr for 1–2 hours
Then reduce further
Improvement
Check HCT
Improvement
HCT = haematocrit
16. CHAPTER2
Figure 2.3 Algorithm for fluid management in hypotensive shock
Hypotensive shock
Fluid resuscitation with 20 ml/kg isotonic crystalloid or
colloid over 15 minutes
Try to obtain a HCT level before fluid resuscitation
Crystalloid/colloid 10 ml/kg/hr for
1 hour, then continue with:
IV crystalloid 5–7 ml/kg/hr for 1– 2 hours;
reduce to 3–5 ml/kg/hr for 2–4 hours;
reduce to 2–3 ml/kg/hr for 2–4 hours.
If patient continues to improve, fluid can be
further reduced.
Monitor HCT 6-hourly.
If the patient is not stable, act according
to HCT levels:
if HCT increases, consider bolus fluid
administration or increase fluid administration;
if HCT decreases, consider transfusion with
fresh whole transfusion.
Stop at 48 hours.
NOYES
HCT or high HCT
Administer 2nd bolus fluid (colloid)
10–20 ml/kg over ½ to 1 hour
Consider significant occult/overt bleed
Initiate transfusion with fresh whole
blood
NOYES
Improvement
Review 1st HCT
Improvement
17. 39
Monitor HCT 6-hourly.
If the patient is not stable, act according
to HCT levels:
if HCT increases, consider bolus fluid
administration or increase fluid administration;
if HCT decreases, consider transfusion with
fresh whole transfusion.
Stop at 48 hours.
Administer 2nd bolus fluid (colloid)
10–20 ml/kg over ½ to 1 hour
Consider significant occult/overt bleed
Initiate transfusion with fresh whole
blood
NOYES
Improvement
HCT or high HCT
Repeat 2nd HCT
Administer 3rd bolus fluid (colloid)
10–20 ml/kg over 1 hour
Improvement
NOYES
Repeat 3rd HCT
32. Clinical (2)
Guidelines on Clinical Management of Chikungunya Fever4
persons had angiomatous lesions and fewer had purpuras. Stomatitis was
observed in 25% and oral ulcers in 15% of patients. Nasal blotchy erythema
followed by photosensitive hyperpigmentation (20%) was observed more
commonly in the recent epidemic. Exfoliative dermatitis affecting limbs and
Table 1: Clinical features in Chikungunya fever
Common Infrequent
Rare in adults but seen
sometimes in children
Fever Rash Photophobia
Arthralgia Stomatitis Retro-orbital pain
Backache Oral ulcers Vomiting
Headache Hyperpigmentation Diarrhoea
Exfoliative dermatitis Meningeal syndrome
Acute encephalopathy
39. Epidemiological Progress
Mexico
Panama
El Salvador
Samoa
Tonga
French Polynesia
Cook Islands
Easter Island,
Chile
Guatemala
Honduras
Nicaragua
Curaçao
Bonaire
Costa Rica
Jamaica
HaitiCuba
Dominican Republic
Bolivia
Colombia
Brazil
French Guiana
Suriname
Trinidad and Tobago
Guyana
Ecuador
Paraguay
Nigeria
Uganda
Gabon
Cape Verde
Thailand
Laos
Cambodia
Malaysia
Philippines
Micronesia
Solomon
Marshall
Islands
Vanuatu
Indonesia
New Caledonia
Fiji
Martinique
Dominica
Puerto Rico
U.S. Virgin Islands
Saint Martin and Sint Maarten
Barbados
St. Vincent and
the Grenadines
Guadeloupe
Maldives
February March
2007–2009 2012–2014
State of Yap,
Micronesia
Gabon
20152015
French Guiana
Honduras
Martinique
Panama
Puerto Rico
Laos
New Caledonia
St. Maarten
Cuba
Dominica
2016 20162016
Tonga
Bonaire
Marshall Islands
St. Vincent and
the Grenadines
Trinidad and
Tobago
January–October November December January
2015
French Polynesia
New Caledonia
Easter Island, Chile
Cook Islands
Malaysia
Philippines
Cambodia
Indonesia
Thailand
Brazil
Vanuatu
Fiji
Colombia
Cape Verde
Samoa
Solomon Islands
El Salvador
Guatemala
Mexico
Paraguay
Suriname
Venezuela
Bolivia
U.S. Virgin
Islands
Dominican
Republic
Ecuador
Guyana
Jamaica
Curaçao
Maldives
Haiti
American
Samoa
Costa Rica
Guadeloupe
St. Martin
Nicaragua
Barbados
Figure 1. Areas in Which Zika Virus Infections in Humans Have Been Noted in the Past Decade (as of March 2016).
Only sporadic infections have occurred in Southeast Asia, the Philippines, and Indonesia.
42. Severe Microcephaly
The new engl and jour nal o f medicine
Figure 4. Infants with Moderate or Severe Microcephaly Associated with Maternal Zika Virus Infection, as Compared
with a Typical Newborn.
Baby with Typical
Head Size
Baby with
Moderate Microcephaly
Typical
head size
Typical
head size
Baby with Severe
Microcephaly