Health Education

What is hepatitis A?

Hepatitis A is an acute inflammation of the liver caused by hepatitis A virus infection. It is mainly transmitted through the fecal-oral route, including eating and drinking food contaminated by the virus or close contact with the infected person.

Timing of vaccination

• Routine vaccination schedule for children: 2 doses should be injected.
• The first dose is injected at 12-15 months after birth, and the second dose at least 6 months later.
• It can be administered simultaneously (at different sites) or at any time interval along with other live attenuated or inactivated vaccines.
• Conditions not suitable for vaccination: fever, acute moderate to severe illness, severe allergic reaction to any component of the vaccine.

Possible adverse reactions after vaccination

• Occasional injection site pain, redness and swelling, heat sensation, slight fever, tiredness, muscle pain, irritability, loss of appetite or gastrointestinal tract discomfort will usually be eased within 2-3 days. If symptoms persist or there are other adverse reactions, please consult a doctor.
• Those who are allergic to the vaccine should not be vaccinated with the next dose.
• If the ear temperature is above 38.5℃ when you have a fever, you can use an antipyretic first. If the fever lasts for more than two days, please go back to the hospital.