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how long do the hepatitis a and b vaccines protect you

A 35-year-old member asked:
Dr. Marcus Degraw
22 years experience Pediatrics
Likely a lifetime: This question has many variables, but our clinical and scientific/experimental experience with these vaccines suggests that life-long immunity is like ... Read More
Dr. Craig MacArthur
34 years experience Pediatric Hematology and Oncology
Not known for sure: Antibody to the vaccines can be detected for up to 15 years for both. The actual immunity to infection may be longer than that as cellular immunity ma ... Read More

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A 32-year-old member asked:
Dr. Marybeth Lambe
45 years experience Travel Medicine
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 lik ... Read More
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A 21-year-old member asked:
Dr. Robert Kwok
33 years experience Pediatrics
Yes: Patients with any liver disease should do their best to prevent getting any other liver diseases. Since Wilson disease damages the liver, Wilson disea ... Read More
A 30-year-old member asked:
Dr. Randy Burgett
9 years experience General Practice
Hepatitis A,B, or C: Hepatitis a is often acute & frequently resolves spontaneously, but may be prolonged & severe. Hepatitis a is contracted from contaminated food & wat ... Read More
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A 25-year-old male asked:
Dr. Robert Kwok
33 years experience Pediatrics
Patient's choice: If a patient knows he is well-immune to Hep B, then he can get just the Hep A vaccine. If he does not know how high is Hep B immunity level is, but is ... Read More
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A 45-year-old member asked:
Dr. Ronald Krauser
52 years experience Rheumatology
Hepatitis B virus: these are different viruses.
A 30-year-old female asked:
Dr. Lourdes Borges ruiz
25 years experience Family Medicine
Immunity: Hi. It seems like you are immune to Hepatitis A and B!. That is great news. It also means that you must have been immunized by the vaccines and did ... Read More
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A 33-year-old male asked:
Dr. Sonober Umair
18 years experience Pediatrics
Answer: For detecting acute infection we look for hepatitis antigen. Then there are certain antibodies that are specific for acute verses chronic infection an ... Read More
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A 33-year-old male asked:
Dr. Silviu Pasniciuc
27 years experience Internal Medicine
Liver abscess: Until proven otherwise, either amoeba or other microorganisms, based on local concentration. A variety of other conditions may be causing the “starry ... Read More
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A 41-year-old member asked:
Dr. Jay Park
Dr. Jay Park answered
50 years experience Pediatrics
Up to 2 decades: Hepatitis b immunization provides protection against symptomatic acute infections and chronic hepatitis b infection.

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