hepatitis A virus
Quick Summary
The hepatitis A virus (HAV) is an infectious agent that causes an acute, usually mild, form of hepatitis. It is a picornavirus, specifically from the Hepatovirus genus.1
HAV is transmitted through contaminated food and water, primarily via the fecal-oral route, making sanitation and food handling crucial for prevention. Symptoms can include fatigue, fever, nausea, vomiting, abdominal pain, dark urine, and jaundice, though many infections, especially in children, are asymptomatic.12
Unlike other forms of hepatitis, hepatitis A is a short-term illness that does not typically lead to chronic liver disease or permanent damage. The incubation period averages four to five weeks, and most infected individuals recover completely. Passive immunization can be achieved through the hepatitis A vaccine or immunoglobulin injections.12
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hepatitisHepatitis AHepatitis A, caused by the hepatitis A virus (HAV), is the most common worldwide. It is considered an acute infection and does not give rise to chronic hepatitis. Its onset usually occurs 15 to 45 days after exposure to the virus, and some infected individuals, especially children, exhibit no clinical…
Read MoreHepatitis A, caused by the hepatitis A virus (HAV), is the most common worldwide. It is considered an acute infection and does not give rise to chronic hepatitis. Its onset usually occurs 15 to 45 days after exposure to the virus, and some infected individuals, especially children, exhibit no clinical…
Read More- digestive system diseaseAcute hepatocellular hepatitis
The hepatitis A virus is transmitted almost exclusively via the fecal–oral route, and it thrives in areas where sanitation and food handling are poor and hand washing is infrequent. HAV proliferates in the intestinal tract during the two weeks following the onset of symptoms, but it…
Read MoreThe hepatitis A virus is transmitted almost exclusively via the fecal–oral route, and it thrives in areas where sanitation and food handling are poor and hand washing is infrequent. HAV proliferates in the intestinal tract during the two weeks following the onset of symptoms, but it…
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