How long do human papillomavirus (HPV) vaccines protect against infection?

The duration of immunity is not yet known. Research is being conducted to find out how long protection will last. Phase III clinical trials have shown that Gardasil and Cervarix can provide protection against HPV16 for 4 years. Smaller studies have suggested that protection is likely to last for longer than 4 years, but it is not known if protection conferred through vaccination will be life long.

This answer is based on source information from the National Cancer Institute.

 Dr. Diane Harper
Health Education

Like many vaccines, the human papillomavirus (HPV) vaccine doesn't last a lifetime. Learn how long you can expect to be protected with the HPV shot by watching this video.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.