Hepatitis A is an acute liver disease caused by the HAV virus. Following viral entry into the body, patients are typically asymptomatic; clinical manifestations of the disease usually appear after 2 to 6 weeks.
?The hepatitis A virus damages hepatic epithelial cells and impairs liver function. If not prevented or detected in a timely manner, the disease may lead to acute liver failure and death, particularly in patients over 50 years of age or those with pre-existing liver conditions such as hepatitis B or C. However, the majority of patients recover within 2-4 weeks.
?The etiological agent of hepatitis A is the hepatitis A virus, which is transmitted via the fecal-oral route. Patients are at high risk of infection due to frequent exposure to:
- Unsanitary food
- Contaminated water
- Sharing utensils (chopsticks, spoons) with individuals infected with hepatitis
Diagnosis of hepatitis A is typically based on acute symptoms such as fatigue, anorexia, and jaundice, combined with elevated liver enzymes (AST/ALT) in the blood.
?To prevent hepatitis A, in addition to preventive measures such as maintaining personal hygiene, environmental sanitation, consuming thoroughly cooked food and boiled water, and avoiding the sharing of personal items (eating utensils, face towels, bath towels, toothbrushes, buckets, basins, etc.) with infected individuals, it is essential to proactively receive the hepatitis A vaccine to stimulate the production of antibodies against the virus.
Currently, there are 3 types of hepatitis A vaccines available in Vietnam, with an efficacy rate of over 95% for up to 20 years.
The Hanoi Medical University Vaccination Center currently provides both monovalent hepatitis A vaccines and combined hepatitis A & B vaccines for children aged 12 months and older!!!HANOI MEDICAL UNIVERSITY VACCINATION CENTER
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