Vaccination with the full, two-dose series of Hepatitis A vaccine is the best way to prevent HAV infection. Hepatitis A vaccine has been licensed in the United States for use in persons 12 months of age and older.
https://www.cdc.gov/hepatitis/hav/havfaq.htm
Your Child's Immunizations: Hepatitis A Vaccine (HepA) 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 6–18 months later.
http://kidshealth.org/en/parents/hepa-vaccine.html
An alternate, accelerated 4-dose schedule is available for Twinrix; doses can be administered at 0, 7, and 21–30 days, followed by a dose at 12 months. Hepatitis A vaccine at the age-appropriate dose is preferred to IG for children and adults aged 1–40 years.
https://wwwnc.cdc.gov/travel/yellowbook/2014/chapter-3-infectious-diseases-related-to-travel/hepatitis-a
8,9. 1  In immunocompromised patients and in hemodialysis. patients, serologic testing may be necessary to. determine antibody response. Additional booster. doses of hepatitis A and/or hepatitis B vaccine or. restarting the vaccination series may be needed. 2  REFERENCES. 3  1. Centers for Disease Control and Prevention.
http://www.hepatitis.va.gov/pdf/HAV-HBV-vaccine-pocketcard.pdf
The accelerated vaccination schedule calls for vaccine doses administered at days 0, 7, and 21–30; a booster should be administered at 12 months to promote long-term immunity. A combined hepatitis A and hepatitis B vaccine can also be used on the same 3-dose schedule (0, 7, and 21–30 days), with a booster at 12 months.
https://wwwnc.cdc.gov/travel/yellowbook/2016/infectious-diseases-related-to-travel/hepatitis-b
Hepatitis A vaccination is recommended for all children at age 1 year, for persons who are at increased risk for infection, for persons who are at increased risk for complications from Hepatitis A, and for any person wishing to obtain immunity. All children at age 1 year (i.e., 12–23 months).
https://www.cdc.gov/hepatitis/hav/havfaq.htm
Vaccine Administration. Hepatitis B vaccine (see Table 3-04) is usually administered as a 3-dose series on a 0-, 1-, 6-month schedule to achieve immunity. The second dose should be given ≥1 month after the first dose; the third dose should be given ≥2 months after the second dose and ≥4 months after the first dose.
https://wwwnc.cdc.gov/travel/yellowbook/2016/infectious-diseases-related-to-travel/hepatitis-b
Among adults, the most frequently reported side effects after hepatitis A vaccination are tenderness or pain at the injection site (56%–67%) and headache (14%–16%). Among children (11–25 months of age), the most common reported side effects are pain or tenderness at the injection site (32%–37%) and redness (21%–29%).
https://wwwnc.cdc.gov/travel/yellowbook/2014/chapter-3-infectious-diseases-related-to-travel/hepatitis-a
The vaccine is not recommended if your child: 1  is currently sick, although simple colds or other minor illnesses should not prevent immunization. 2  had a severe allergic reaction to the first dose of hepatitis A vaccine or has a latex allergy.
http://kidshealth.org/en/parents/hepa-vaccine.html
One dose of a monovalent hepatitis A vaccine protects most healthy people aged 1–40 years and should be administered as soon as travel is considered. The monovalent vaccine series should be completed according to the licensed schedule for long-term protection.
https://wwwnc.cdc.gov/travel/yellowbook/2014/chapter-3-infectious-diseases-related-to-travel/hepatitis-a
hepatitis a shots schedule
For hepatitis A shots, the same dose of 0, 7, and 21 are given every 30 days with a booster at 12 months. The schedule of hepatitis A shots is on the same 3 dose schedule at 0, 7, and 21 to 30 days, with a booster at 12 months.