what is the incubation period for hepatitis a?
The incubation period of hepatitis A is approximately 28 days (range 15-50 days). The clinical course of acute hepatitis A is indistinguishable from that of other types of acute viral hepatitis. The illness typically has an abrupt onset of fever, malaise, anorexia, nausea, abdominal discomfort, dark urine and jaundice.