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Should One Repeat a Hep B Vaccine Series?

by Chari Cohen, Hepatitis B Expert
June 06, 2019

Question: Is it wise to repeat a Hep B vaccine series?

Answer:

The good news is that there is a safe and effective vaccine to protect against getting a hepatitis b virus infection. It is never too late to start the hepatitis B vaccine (unless you are already infected with the hepatitis B virus). The vaccine is given as 3 shots over a 6-month period. There is also a 2-dose vaccine option for adults ages 18 and over. The vaccine offers a lifetime of protection against a hepatitis B infection. At this time, the CDC does not currently recommend re-vaccination in persons with intact immune systems. Once a person completes the hepatitis B vaccine series, they should be protected for life and should not need to repeat the vaccine series, unless they have not responded to the vaccine for some reason. For more information, please visit http://www.hepb.org/prevention-and-diagnosis/vaccination/vaccine-non-responders/.

Chari Cohen is Senior Vice President of Public Health for the Hepatitis B Foundation.

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