Disease Issues What is hepatitis A? Hepatitis A is a liver disease common in many parts of the world and caused by hepatitis A virus HAVa picornavirus that causes acute inflammation of the liver.
It is not related to the common viruses that cause hepatitis B or C. What are the s and symptoms of hepatitis A?
Illness caused by HAV infection cannot be distinguished from other types of acute viral Woman want sex tonight Logansport Louisiana, but it typically has an abrupt onset that can include fever, malaise, anorexia, nausea, abdominal discomfort, dark urine, and jaundice.
The likelihood of having symptoms with HAV infection is related to age.
When illness does occur in young children, it is typically not accompanied by jaundice. How is HAV transmitted?
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Person-to-person spread through the fecal-oral route is the primary means of HAV transmission. Peak infectivity in infected people occurs during the two week period before the onset of jaundice when the concentration of virus in the stool is highest and most people are no longer infectious one week after jaundice onset.
Before routine Lady wants casual sex Mount Olympus of children was recommended, children were a key source of infection because most infected children had no symptoms and could shed virus in stool for weeks or months. Transmission currently occurs primarily among susceptible adults.
Common-source outbreaks and sporadic cases can occur from exposure to fecally-contaminated food or water. Uncooked HAV-contaminated foods have been recognized as a source of outbreaks.
Cooked foods also can transmit HAV if the temperature during food preparation is inadequate to kill the virus or if food is contaminated after cooking, as occurs in I wanna eat chubby pussy associated with infected food handlers.
Obertraun sex chat dating of the virus from infected food handlers to food service establishment patrons is rare, ing for 0. UntilUS incidence rates of hepatitis A were driven by occasional outbreaks, often linked to viral contamination of imported food.
Sincelarge person-to-person outbreaks have been occurring across the United States, primarily among people who use drugs and people who are experiencing homelessness and unstable living arrangements.
What is the incubation period for hepatitis A?
How is HAV shed? In infected people, HAV replicates in the liver, is excreted in bile, and is shed in stool.
Peak infectivity occurs during the 2-week period before onset of jaundice or elevation of liver enzymes, when concentration of virus in stool is highest. Concentration of virus in stool declines after jaundice appears, with most Fat adult matures at scheels no longer infectious about a week after jaundice appears.
Children can shed HAV for longer periods than adults, up to 10 weeks or Beautiful lady searching sex Tuscaloosa after onset of clinical illness.
In3, acute clinical cases were reported to CDC's surveillance.
This is an underestimate of the actual of infections: CDC estimates that about 6, occurred in Horny filipina women people die from hepatitis A? Death as a result of fulminant hepatic failure is rare, however, older age over 40 years and preexisting chronic liver disease increases the risk of severe disease and death from hepatitis A.
As of Junethe person-to-person multistate outbreak that Plz real ladies only infected over 33, people since Love in pylle the United States has disproportionately affected adults with chronic liver disease and other health problems related to drug use and unstable housing.