Quick Answer: How Long Is A Hepatitis A Shot Good For?

Is Hep A vaccine for life?

How long does hepatitis A vaccine protect you.

Estimates for long-term protection for fully vac- cinated people (i.e., full two-dose series) suggest that protection from hepatitis A virus infection could last for at least 25 years in adults and at least 14–20 years in children..

Is it OK to get hepatitis A vaccine twice?

Is it harmful to have an extra dose of hepatitis A vaccine or to repeat the entire hepatitis A vaccine series? No, getting extra doses of hepatitis A vaccine is not harmful.

What happens if you get hepatitis A?

Unlike other types of viral hepatitis, hepatitis A does not cause long-term liver damage, and it doesn’t become chronic. In rare cases, hepatitis A can cause a sudden loss of liver function, especially in older adults or people with chronic liver diseases.

Can you get hepatitis A from kissing?

Catching hepatitis by kissing an infected person is unlikely — although deep kissing that involves the exchange of large amounts of saliva might result in HBV, especially if there are cuts or abrasions in the mouth of the infected person.

How many shots are required for hepatitis A & B?

The hepatitis A and hepatitis B vaccines can be given separately or as a combination vaccine. All the shots in the series are needed for long-term protection. The full series of the hepatitis A and hepatitis B vaccines require 2-3 shots, depending on the type of vaccine.

How often do you need to get hepatitis A vaccine?

For long-term immunity, the HepA vaccination series should be completed with a second dose at least 6 months after the first dose. However, the second dose is not necessary for PEP. A second dose should not be administered sooner than 6 calendar months after the first dose, regardless of HAV exposure risk.

How long does a hepatitis A shot last for?

It is not known for how long protection from one hepatitis A vaccine dose lasts, but it has been shown to last for at least 10 years (29).

Is hepatitis A vaccine necessary?

The Centers for Disease Control and Prevention (CDC) recommends hepatitis A vaccination for all children in the United States when they are one year of age, all children and teens through age 18 who were not pre- viously vaccinated, certain children age 6 through 11 months who are traveling outside the U.S., all adults …

Is hepatitis A immunity lifelong?

Hepatitis A is a viral liver disease that can cause mild to severe illness. The hepatitis A virus (HAV) is transmitted through ingestion of contaminated food and water or through direct contact with an infectious person. Almost everyone recovers fully from hepatitis A with a lifelong immunity.

How long does a Hep A and B vaccine last?

How long does protection from hepatitis B vaccine last? Studies indicate that immunologic memory remains intact for at least 30 years among healthy people who initiated hepatitis B vaccination at >6 months of age (16).

Can you get hepatitis A more than once?

People who have hepatitis A infection become immune to HAV for the rest of their lives once they recover. They cannot get hepatitis A twice.