2024年1月11日 · There are two types of hepatitis A vaccines: single-antigen and combination. The single-antigen vaccine protects against hepatitis A and the combination vaccine protects against both hepatitis A and hepatitis B. You can only …

2025年1月31日 · The United States Food and Drug Administration (FDA) has licensed two single-antigen hepatitis A vaccines (Havrix and Vaqta) and one combination vaccine for protection against both hepatitis A and hepatitis B (Twinrix) for use in the US.

2011年3月14日 · Learn how hepatitis A and B vaccines protect you from the viruses that can lead to this liver disease.

Hepatitis A vaccine is a vaccine that prevents hepatitis A. [2][3] It is effective in around 95% of cases and lasts for at least twenty years and possibly a person's entire life. [4] . If given, two doses are recommended beginning after the age of one. [2] . …

2021年10月15日 · Hepatitis A vaccine. Children need 2 doses of hepatitis A vaccine: First dose: 12 through 23 months of age. Second dose: at least 6 months after the first dose. Infants 6 through 11 months old traveling outside the United States when protection against hepatitis A is recommended should receive 1 dose of hepatitis A vaccine. These children ...

Hepatitis A (HepA) vaccines are prepared from formalin-inactivated, cell culture–derived hepatitis A virus. Both vaccines are available in pediatric and adult formulations. A combined hepatitis A vaccine/hepatitis B vaccine is also available.

2019年9月27日 · The hepatitis A vaccine is a dose of inactive virus that stimulates your natural immune system. After the hepatitis A vaccine is given, your body makes antibodies that will protect you against the hepatitis A virus.

Hepatitis A vaccine can prevent hepatitis A. Hepatitis A is a serious liver disease. It is usually spread through close, personal contact with an infected person or when a person unknowingly ingests the virus from objects, food, or drinks that are contaminated by small amounts of stool (poop) from an infected person.

During a hepatitis A outbreak, people 1 year of age or older who are at risk of hepatitis A virus infection should be vaccinated. If people have a temporary illness, doctors usually wait to give the vaccine until the illness resolves (see also CDC: Who …

Hepatitis A vaccine is used to prevent infection caused by the hepatitis A virus (HAV). The vaccine works by causing your body to produce its own protection (antibodies) against the disease. Hepatitis A is a serious disease of the liver that can cause death.