Recommendations for Postexposure Prophylaxis to Hepatitis A Virus

Age of person being assessed

Weight of person

Has the person received hepatitis A vaccine in the past?

How long ago was the vaccination in months? (enter 12 if more than 1 year)

Has the person recently received hepatitis A immune globulin?

How many weeks ago did the person receive the immune globulin? (enter 12 if more than 3 months)

Is the person known to be anti-HAV IgG positive?

Is the person known to be anti-HAV IgM positive?

How long ago was the suspected hepatitis A exposure, ?

Age of suspected index patient

Is the index patient documented as having viral hepatitis A (anti-HAV IgM positive, other test)?

Number of additional cases of suspected hepatitis A other than index person

Is the person a household contact to someone with viral hepatitis A?

Is the person a sexual contact of someone with viral hepatitis A?

Does the person live in the household of a child or employee attending a day care center with a hepatitis A outbreak (>= 3 families affected)?

Was the person exposed to viral hepatitis A at a day care center with children wearing diapers?

Did the exposure occur at a day care center without diaper wearing children?

Does the person share the same classroom as someone with viral hepatitis A?

Was someone with viral hepatitis A at a primary or secondary school that the person attends?

Was the person in the same classroom and in close contact with the infected patient?

Was someone with viral hepatitis A at the place where the person works

Was the person in the same office and in close contact with the infected patient?

Was the person's exposure at a restaurant or cafeteria?

Is the person a food handler who works with a food handler who has viral hepatitis A?

Was the source person a food handler with poor hygiene or diarrhea at the time of hepatitis onset?

Is the place of exposure an insitutional cafeteria?

Is the person a health care worker taking care of a patient with hepatitis A infection?

Has the person been using good hygienic practices throughou the care period?