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Doctor insights on: How Long Do The Hepatitis A And B Vaccines Protect You

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How long do the hepatitis a and b vaccines protect you?

How long do the hepatitis a and b vaccines protect you?

Likely a lifetime: This question has many variables, but our clinical and scientific/experimental experience with these vaccines suggests that life-long immunity is likely. This is demonstrated by current recommendations of not needing booster doses, even when titers are zero in a person who has been fully vaccinated. These vaccines produce strong anamnestic responses in our bodies to confer longterm protection.

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Dr. Brett Kalmowitz
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How long do hepatitis a and b vaccines protect you?

How long do hepatitis a and b vaccines protect you?

Varies: Immunization should normally protect you for life, but in some individuals, the immunity fades away, in this case a booster shot may be needed, others may never be protected even after multiple series of shots, specially for hepatitis b.

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How long are hepatitis a & b vaccines good?

Hep a &b vaccines: Hepatitis b vaccine is good for at least 25 years as we know now if you had successful series of three vaccines and same will hold true for hep a vaccine series of two shots 6 months apart as we know now no boosters are being given or contemplated to these vaccines, but these vaccines are relatively new and how long immunity will last, will it be life long or not is not known at this time.

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Will the hepatitis a vaccine protect someone from other forms of hepatitis?

Will the hepatitis a vaccine protect someone from other forms of hepatitis?

No: The hepatitis a vaccine is given as a series of 2 injections over 6 months. Once it is given, a lab test can be performed to establish if it was successful. Once the blood test shows the presence of hepatitis a antibody in your blood you are immune from contracting hepatitis a only. There is also a vaccine available for hepatitis b but there is no vaccine available for hepatitis c.

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I had a hepatitis A vaccine six days ago and have been feeling nauseous since the day after the vaccine. Is this normal? How long should it last?

I had a hepatitis A vaccine six days ago and have been feeling nauseous since the day after the vaccine. Is this normal? How long should it last?

Should resolve: Side effects of the hepatitis A vaccine usually are mild. Soreness at the site of injection is common. Less commonly, recipients may complain of headache or fatigue, some nausea and abdominal discomfort. This should not last more than week. If it does, see your MD for assessment. Remember that hepatitis A vaccine is two shots, spaced 6 months apart. You may or may not have similar symptoms

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Do you only need to get hepatitis A & B vaccines once in your life?

Do you only need to get hepatitis A & B vaccines once in your life?

Vaccines hep A & B: Yes, they are both given as a series. Hep B is a three shot series; the first two are 1-2 months apart and the third is 6 months after the first. Hep A is a 2 shot series two months apart and you should be good. No boosters are required.

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Vaccine shots; what are the consequences if you get your hepatitis a vaccine but don't get hepatitis b shot?

Vaccine shots; what are the consequences if you get your hepatitis a vaccine but don't get hepatitis b shot?

Immunity only Hep A: If you had 2 shot series for hepatitis a you are immune from that viral illness for life. There is a combination hep a/hep b vaccine but it sounds like you were not offered that choice & were started on hep a vaccine alone. Talk to your provider about adding hep b vaccine series now as a series of three doses.

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Is the hepatitis a vaccine safe?

Yes, very safe: The hepatitis a vaccine is very safe and very effective. It is one of the newer vaccines, and is not a live-virus vaccine. Millions of children and adults have gotten the vaccine without problems.

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Is the hepatitis a vaccine effective?

Is the hepatitis a vaccine effective?

HAV vaccine: Hep a vaccine is able to provide protection after 2 weeks of administration and is effective upto 94-100%.

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How is the hepatitis a vaccine given?

2 or 3 shot series: Hepatitis a vaccines come in 2-shot and 3-shot series. Sometimes, hepa and hepb vaccines are combined in the same shot.

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Reactions to hepatitis a vaccine common?

No: Hepatitis a vaccine rarely causes any reactions. It is a killed vaccine so there is no active disease with it. Hepatitis a is one of the most vaccine- preventable viruses.

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Is it crucial my teenage son have the hepatitis a vaccine?

Is it crucial my teenage son have the hepatitis a vaccine?

Depends: Depends where you live. In texas it is a required vaccine if you want to attend school as there are more cases of hepatitis a as compared to some other states.

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Is there a vaccine for hepatitis a?

Is there a vaccine for hepatitis a?

Yes, a great one!: Hepatitis a vaccine has been available in the U.S. Since 1995 and was recently made a standard vaccination for children one year of age or older. This every effective 2 dose vaccine protects against a serious viral liver infection spread through contaminated food or water. It is an essential vaccine to get if you are traveling to a developing country.

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Dr. Jay Park
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