Hepatitis A vaccination

Hepatitis A vaccination is an immunization indicated for active pre-exposure and post-exposure prophylaxis against acute infection caused by the hepatitis A virus (HAV)

Hepatitis A vaccination is an immunization indicated for active pre-exposure and post-exposure prophylaxis against acute infection caused by the hepatitis A virus (HAV)

Transmitted primarily via the fecal-oral route through contaminated food, water, or close contact, the virus targets the hepatic system, producing an immune-mediated necroinflammatory liver injury that classically manifests with fever, malaise, anorexia, nausea, right upper quadrant abdominal pain, dark urine, and jaundice Although HAV infection does not lead to chronic hepatitis, it can cause severe morbidity or life-threatening fulminant hepatic failure, particularly among older adults, indivi...

Transmitted primarily via the fecal-oral route through contaminated food, water, or close contact, the virus targets the hepatic system, producing an immune-mediated necroinflammatory liver injury that classically manifests with fever, malaise, anorexia, nausea, right upper quadrant abdominal pain, dark urine, and jaundice

Although HAV infection does not lead to chronic hepatitis, it can cause severe morbidity or life-threatening fulminant hepatic failure, particularly among older adults, individuals with pre-existing chronic liver disease, and other high-risk populations