The hepatitis A virus (HAV) causes fever, nausea, vomiting, and jaundice, and can lead to community-wide epidemics. Childcare centers are a common site of outbreaks.
The vaccine is recommended for children 12-23 months old, followed by a second dose 6 months later. The vaccine is also recommended for older kids and adults who are at high risk for the disease, including those who are traveling to locations where there are high rates of HAV.
Why the Vaccine Is Recommended
Vaccination against HAV can help stop epidemics from developing in the community, in addition to protecting the individual child. Some infected children do not have any symptoms, and can spread the virus to others. The more young children who are vaccinated against HAV, the more limited the spread of disease will be in a community.
Possible Risks
Side effects are usually mild fever, and tenderness, swelling, and redness at the site of the injection.
When to Delay or Avoid Immunization
- if your child is currently sick, although simple colds or other minor illnesses should not prevent immunization
- if your child had an allergic reaction to the first dose of hepatitis A vaccine
Caring for Your Child After Immunization
Your child may experience fever, soreness, and some swelling and redness in the area where the shot was given. Pain and fever may be treated with acetaminophen or ibuprofen. Check with your doctor about the appropriate dose.
When to Call the Doctor
- if you aren't sure if the vaccine should be postponed or avoided
- if there are problems after the immunization