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Cancer Prevention Vaccine

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What Cancer Prevention Vaccines Are

Cancer prevention vaccines are shots that protect your body from infections caused by certain viruses known to increase the risk of developing cancer later in life. The two main vaccines approved in the United States are the human papillomavirus (HPV) vaccine, called Gardasil 9, and the hepatitis B virus (HBV) vaccine. These vaccines do not treat cancer but work by preventing infections that can lead to cancer over time.

Gardasil 9 protects against nine types of HPV, including those that cause most genital warts and the majority of HPV-related cancers such as cervical, vaginal, vulvar, anal, penile, and throat cancers. The hepatitis B vaccine prevents infection with HBV, a virus that can cause serious liver disease and increase the risk of liver cancer.

Why Cancer Prevention Vaccines Matter

These vaccines are important because they help your immune system recognize and fight viruses before they can cause infections that might lead to cancer years later. Vaccination is most effective when given before a person is exposed to the viruses, which is why it is usually recommended for children and young adults, often starting around ages 9 to 12. Adults up to age 26 are also advised to get the HPV vaccine if they were not vaccinated earlier. For adults aged 27 to 45, vaccination may be considered after discussing benefits and risks with a healthcare provider.

While vaccination lowers the risk of certain cancers, it does not protect against all cancers or all types of HPV or hepatitis B infections. It also does not replace regular cancer screenings, such as Pap tests for cervical cancer.

What to Expect When Cancer Prevention Vaccines Are Discussed

You might hear about cancer prevention vaccines during routine health visits, vaccination appointments, or cancer prevention discussions. Your healthcare provider may explain the benefits, the recommended age for vaccination, and how many doses you or your child will need. Common questions include eligibility, side effects, and whether you still need cancer screenings after vaccination.

Side effects are usually mild and can include soreness at the injection site, fever, or tiredness. Serious side effects are rare. It’s important to talk with your healthcare provider about any concerns or questions you have.

Understanding What Cancer Prevention Vaccines Do and Don’t Mean

Getting a cancer prevention vaccine means you are taking an important step to reduce your risk of certain virus-related cancers. However, it does not guarantee you will never get cancer, nor does it treat cancer if you already have it. These vaccines are part of a broader cancer prevention plan that includes healthy lifestyle choices and regular screenings.

Also, the term “cancer prevention vaccine” should not be confused with cancer treatment vaccines, which are designed to help the immune system fight cancer cells in people who already have cancer. Cancer prevention vaccines focus on stopping infections that can lead to cancer in the future.

Next Steps and Talking With Your Care Team

If you or your child are eligible for a cancer prevention vaccine, your healthcare provider can help you understand the benefits and any risks. They can also guide you on the right timing and number of doses needed. If you have questions about how these vaccines fit into your overall cancer prevention plan, don’t hesitate to ask. Remember, vaccination is one part of protecting your health, alongside regular check-ups and screenings.

This information is educational and does not replace personalized medical advice. Your healthcare provider is the best source to help decide if a cancer prevention vaccine is right for you or your family based on your health history and risk factors.

Sources

Public source information used for this glossary entry includes: