L16: Viral Hepatitis Flashcards
Def of Viral Hepatitis
- It is an acute viral infection of the liver, and a group of infectious diseases that affect millions of people
worldwide.
Number of acute & Chronic Cases & Deaths HBC & HVC worldwide in 2015
- The number of acute and chronic injuries worldwide has been estimated by (WHO 2015) 32 million cases of hepatitis B, C and 1.34 million people died from it.
In 2015 According to DHS
- The prevalence of HCV
DHS is In Egypt
The prevalence of HCV was
- 4.4% for age group 1 - 59 years &
- 0.2% for age group 1-14 years
In 2015 According to DHS
- rate of infection
- in men was 5.3% and
- in women 3.6%, and
it increased by age in both men and women.
In 2015 According to DHS
- The infection with HCV is ……. in rural areas (…..%) compared with urban areas (….%)
- More
- 5%
- 3%
In 2015 According to DHS
-The percentage was ….. in upper Egypt compared to lower Egypt (….. in Upper Egypt, ….. in Lower Egypt)
- higher
- 5.6%
- 3.4%
In 2015 According to DHS
- it was ….% in urban governorates and ….% in borde governorates.
3, 1.6
In 2015 According to DHS
- The prevalence of (HBV)
1% for age group 1 - 59 years old.
Suspected Case of Viral Hepatitis
Probable Case of Viral Hepatitis
Confirmed Case of Viral Hepatitis
Hepatitis A
(infectious/ epidemic)
No. of worldwide cases of HAV
1.4 million people worldwide each year are infected
What predisposes for HAV?
More prevalent in unsanitary environment, poor areas and bad hygienic conditions
Incidence of HAV
- 1.4 million people worldwide each year are infected.
- More prevalent in unsanitary environment, poor areas and bad hygienic conditions
- Most children in developing countries (90 %) exposed to hepatitis A virus
- Outbreaks are unusual and Fulminant Hepatitis rarely occurs
Incidence of HAV in Egypt
number of reported cases in 2014 is 3.037 .
Epidemic Threshold of HAV
not known
Causative Agent of HAV
Hepatitis A virus, that can live for several months outside the body
Reservoir of HAV
human
- case (sub clinical or clinical)
- carriers: incubatory
MOT of HAV
food and water born disease
Exit: Stool & Blood in stage of Viremia
IP of HAV
Infectivity Period of HAV
Susceptible age for HAV
Susceptible Sex for HAV
Both sex are susceptible
Immunity by HAV
Lifelong immunity
What Environmental Factors predispose for HAV?
poor sanitation, water and food born epidemic may occur
General Prevention of HAV
Revise general epidemiology
Specific Prevention of HAV
- Active Immunization
- Sero-Prophylaxis
Active Immunization of HAV
Nature of Active Immunization of HAV
Dose of Active Immunization of HAV
Effect of Active Immunization of HAV
Indications of Active Immunization of HAV
Sero prophylaxis in HAV
Nature of Sero prophylaxis in HAV
Dose of Sero prophylaxis in HAV