Adult Vaccinations
There are a few reasons why adults may still need vaccination/immunization:
- Some adults were never vaccinated as children / incorrectly vaccinated
- Newer vaccines are now available but were not available when they were a child
- Immunity can fade or dissappear over time
- As adults get older, some may easily become more susceptible to diseases caused by common infections like flu or pneumococcus
Below is a chart to determine how often and when you should get vaccination or immunization. Depending on every adults’ circumstances, adults often need more of these shots than they suspect.
| RECOMMENDED VACCINE | HOW OFTEN | GET IT IF YOU… | AVOID IT IF YOU ARE… |
| INFLUENZA
Protects against the flu, which can be fatal, especially in the elderly |
Every year in March or April. |
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| PNEUMOCOCCAL (PPV)
Guards against pneumonia and blood infections caused by Pneumococcus bacteria. |
Once, with a booster five years later if you have a chronic illness, or were 65 or over at your first shot. |
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| HEPATITIS B (HEP-B)
Prevents an infection that can cause liver failure. |
Three shots over a 6-18 month period. |
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| HEPATITIS A (HEP-A)
Shields against liver inflammation caused by a virus. |
Two doses, 6-18 month apart. |
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| TETANUS, DIPHTHERIA (TD)
Prevents lockjaw and an infection of the throat that can damage the heart and lungs. |
After a primary series of three shots (usually in childhood), boosters every 10 years. |
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| MEASLES, MUMPS, RUBELLA (MMR)
Prevents three contagious viral infections that may cause birth defects or death. |
Two doses separated by at least one month (usually given during childhood at 12 months of age). |
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| VARICELLA
Protects against chickenpox. |
Adult: Two doses at least six weeks apart.
Child: 12 months to 12 years: one dose. |
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| POLIO
Prevents an infection that can lead to paralysis. |
One dose once in adulthood, if it was not given during childhood. |
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Source: Adapted from recommendations of the National Health and Medical Research Council of Australia, Canberra, and the Centers for Disease Control and Prevention Advisory Committee on Immunisation Practices, Atlanta, Georgia, USA.

Adult Vaccination
An Adult Immunization Schedule/Chart (US) can be downloaded here:
Health & Medicine Power Search: