Hepatatis A Flashcards
Hepatitis A virus can be stable in environments for months and stable at low PH and moderate and frozen tempature
But inactivated by high temperature formalin and chlorin
T or F
T
Hepatitis A replicate in ——
Liver
Incubation period of hepatitis A about —-
28 day range from 15-50 day
Clinical illness not last more than 2 month
But in 10%-15% continuous 6month
T or F
T
Hepatitis A related to Age
Child less than 6 years 70% asymptomatic but older children and adult symptomatic and 70% have juandice T or F
T
All pateint with acute hepatitis A have detectable IGM antiHAV
T or F
T
IgM can detectable in serum before 5-10 days of symptom and persist 6 month after symptom
T or F
T
Person who have total anti -hepatitis A positive and IgM negative
What is this mean?
This mean pateint have past infection or vaccination
Management of hepatitis A is
There is no specific treatment
Resevior of hepatitis A is human are the only
T or F
T
How can hepatitis A transmitted ?
Primary by fecal oral rout
Rare by blood transfusions and organ transplantation
Ssaliva but transmitted by saliva but not been demonstrated
Water borne outbreak
There is seasonal variation in Hepatitis A T or F
F no seasonal
Hepatitis A 1 to 2 weeks before onset of illness when hepatitis A concentration in stool is highest
هاي الفتره الي قبل شهور الاعراض ب اسبوع او اسبوعين
راح يكون موجود بالخروج بشكل عالي وممكن ينقل ال مرض
T or F
T
What is the risk factor of Hepatitis A?
Person with HIV
Travelers- adoptees -men who sex with men -homeless -person who work with person with hepatitis A
Person with clotting factor disorder person with clinical or non clinical materials containing hepatitis A virus in a research laboratory setting
Food handlers and healthcare personnel do not increase risk of infection
T or F
T
