Prevention tool
Which Sexual Health Vaccines Do I Need?
Some STIs you can't test your way out of, you can vaccinate against them. HPV, hepatitis A and B, and mpox are all vaccine-preventable. Answer a few private questions and this free tool builds your personalized vaccine checklist from CDC guidance. Nothing you enter leaves your browser.
Sexual health vaccine checker
Your vaccine checklist
Vaccines to ask about
This checklist is general information based on CDC/ACIP recommendations, not a diagnosis or a prescription. A clinician or pharmacist confirms what you need and can check what you've already had.
The basics
The STIs you can vaccinate against
Most STIs have no vaccine: but three do, and they prevent some of the most serious outcomes, including cancer and liver disease. If a shot can take a whole infection off the table, it's one of the best moves in sexual health.
HPV
Prevents most cervical and several other cancers, plus genital warts. Routine through 26; a shared decision to 45.
Hepatitis A & B
Two vaccine-preventable liver infections that spread through sex. Hep B is now recommended for all adults 19–59.
Mpox (JYNNEOS)
A two-dose vaccine for those at higher risk through sexual contact, based on recent partners and exposures.
Keep going
Round out your prevention plan
Sources
Where this tool comes from
Every recommendation follows the CDC and its Advisory Committee on Immunization Practices (ACIP). We don't add to or reinterpret them.
Medically Reviewed & Fact-Checked · Updated
Reviewed by EasySTD Editorial Team
Compiled and checked by EasySTD's editorial team against CDC and public-health sources. This is educational information, not a substitute for advice from a licensed clinician. Our editorial guidelines →
4 Sources
Data & references
- CDC: Immunization Schedules (adult)https://www.cdc.gov/vaccines/hcp/imz-schedules/index.html
- CDC: Universal Hepatitis B Vaccination in Adults 19–59 (MMWR, 2022)https://www.cdc.gov/mmwr/volumes/71/wr/mm7113a1.htm
- CDC: HPV Vaccination Recommendationshttps://www.cdc.gov/vaccines/vpd/hpv/hcp/recommendations.html
- CDC: JYNNEOS (Mpox) Vaccine Recommendations (2023)https://www.cdc.gov/mmwr/volumes/74/wr/mm7422a3.htm
EasySTD is an information and comparison directory, not a healthcare provider. This tool is general information based on published immunization recommendations: it is not medical advice, a diagnosis, or a prescription, and it does not create a doctor-patient relationship. Always consult a qualified clinician or pharmacist.
Good to Know
Sexual health vaccines: frequently asked questions
HPV age limits, adult hepatitis B, mpox eligibility, and checking your records.
Which STIs can a vaccine actually prevent?
Three. HPV, the virus behind most cervical and several other cancers plus genital warts, is prevented by the HPV vaccine. Hepatitis A and hepatitis B, both spread through sex, each have a safe, long-standing vaccine (and a combined shot covers both). And mpox, which spread largely through sexual networks in the 2022 outbreak, is prevented by the two-dose JYNNEOS vaccine. There's no vaccine yet for chlamydia, gonorrhea, syphilis, herpes, or HIV: for those, testing and prevention like PrEP are the tools.
I'm over 26, is it too late for the HPV vaccine?
Not necessarily. HPV vaccination is routinely recommended through age 26 for anyone not already caught up. For adults 27 through 45, the CDC recommends 'shared clinical decision-making': meaning it isn't automatic, but you and your provider can decide it's worthwhile based on your situation, for example if you have new or multiple partners. After 45 it isn't recommended.
Do adults really need the hepatitis B vaccine?
Yes. In 2022 the CDC began recommending hepatitis B vaccination for all adults aged 19–59, regardless of risk: it's that safe and that effective, and it removed the old need to disclose risk factors to qualify. Adults 60 and older can still get it, and it's specifically recommended for them if they have risk factors like multiple partners, injection drug use, HIV, or diabetes.
Who should get the mpox (JYNNEOS) vaccine?
The CDC recommends the two-dose JYNNEOS vaccine for gay and bisexual men, other men who have sex with men, and transgender people who in the past 6 months had a new STI diagnosis, more than one sex partner, or sex at a commercial venue or in connection with a large event in an area with mpox, and for their sexual partners. It's given as two shots 28 days apart.
How do I know if I've already been vaccinated?
Many people got hepatitis B as infants (it's been routine since the 1990s) and some got HPV as pre-teens. Check your immunization records, your state's immunization registry, or ask your provider or pharmacist, they can look it up and test your hepatitis B immunity if it's unclear. You don't need to repeat a completed series.
Is what I enter here private?
Completely. This tool runs entirely in your browser: your answers are never sent to a server, saved, or shared. It's educational and can't diagnose you or order a vaccine; a clinician or pharmacist does that. Bring your checklist to them.
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