Getting hepatitis B vaccine in much safer than getting hepatitis B disease.
(By Centers for Disease Control & Prevention (CDC); U.S. Department of Health & Human Services)
Hepatitis B is a serious disease.
The hepatitis B virus can cause short-term (acute) illness that leads to:
Loss of appetite
Diarrhea and Vomiting
Tiredness
Jaundice
Pain in muscles, joints, and stomach
It can also cause long-term (Chronic) illness that leads to:
Lever damage
Liver cancer
Death
Hepatitis B vaccine can prevent hepatitis B. It is the first anti-cancer vaccine because it can prevent a form of liver cancer.
How is Hepatitis B virus spreads?
Hepatitis B virus is spread through contact with the blood and body fluid of an infected person. A person can get infected in several ways, such as:
During birth when the virus passes from an infected mother to her baby,
By having sex with an infected person,
By injecting illegal drugs,
By being stuck with a used needle on the job,
By sharing personal items, such as razor or toothbrush with an infected person.
People can get hepatitis B virus infection without knowing how they got it.
Who should get Hepatitis B vaccine and when?
Everyone 18 years of age and younger
Adults over 18 years who are at risk
Adults at risk for hepatitis B virus infection include people who have more than one sex partner, men who have sex with other men, injection drug users, health care workers, and others who might be exposed to infected blood or body fluids.
People should get 3 doses of hepatitis B vaccine according to the following schedule. If you miss a dose or get behind schedule, get the next dose as soon as you can. There is no need to start over.
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Hepatitis B
Vaccination
Schedule |
Infant whose mother is infected with Hepatitis B virus should follow the following schedule |
Infant whose mother is not infected with Hepatitis B virus |
Older child, adolescent or adult |
|
First dose |
within 12 hours of birth |
Birth-2 months of age |
any time |
Second dose |
1-2 months of age |
1-4 months of age (at least 1 month after first dose) |
1-2 months after first dose |
Third dose |
6 months of age |
6-13 months of age |
4-6 months after first dose |
The second dose must be given at least 1 month after the first dose.
The third dose must be given at least 4 months after the first.
The third dose should not be given to infants younger than 6 months of age.
All three doses are needed for full and lasting immunity. Hepatitis B vaccine may be given at the same time as other vaccines.
Some people should not get hepatitis B vaccine or should wait
People should not get hepatitis B vaccine if they have ever had a life-threatening allergic reaction to baker's yeast (the kind used for making bread) or to a previous dose of hepatitis B vaccine.
People who are moderately or severely ill at the time the shot is schedule should usually wait until they recover before getting hepatitis B vaccine.
Risks from Hepatitis B vaccine
A vaccine, like any medicine, is capable of causing serious problems, such as severe allergic reactions. The risk of hepatitis B vaccine causing serious harm, or death, is extremely small.
Getting hepatitis B vaccine in much safer than getting hepatitis B disease.
Most people who get hepatitis B vaccine do not have any problems with it.
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Mild Problems
Soreness where the shot was given, lasting a day or two (up to 1 out of 1 children and adolescents, and about 1 to 4 adults).
Mild to moderate fever (up to 1 out of 14 children and adolescents and 1 out of 100 adults).
Serious allergic reaction are very rare.