For the full clinical picture — what each vaccine does, the evidence behind it, and the complete schedule — see The Vaccine Checklist first. This guide covers the UK-specific situation: what's free, where to get it, and the age rules that are significantly more generous here than anywhere else.

The UK is unusually generous with vaccines for gay and bisexual men, largely because the health economics are straightforward: treating anal cancer and hepatitis complications is far more expensive than preventing them.

HPV: The Big Win

  • Eligibility: Free on the NHS for gay and bisexual men up to their 45th birthday.
  • Cost: £0. Completely free at GUM clinics.
  • Why this matters: In most of Europe and the US, free HPV vaccination cuts off at age 26. The UK has extended this window to 45 — meaning men who missed the school-age vaccination programme can still get full protection.
  • What it covers: HPV strains responsible for genital warts, anal cancer, penile cancer, throat cancer, and other HPV-related cancers.
  • Schedule: Two or three doses depending on age; your GUM clinic will advise. You must start the course before your 45th birthday.
  • Action: Ask at your next GUM clinic visit: "Am I eligible for the HPV jab?"

Mpox (Monkeypox)

  • Eligibility: Routinely offered to gay and bisexual men at GUM clinics.
  • Cost: Free.
  • Vaccine: Imvanex (two doses, four weeks apart). After a primary course, boosters may be offered in the context of outbreaks.
  • Access: Most GUM clinics stock it. You may need to book a specific vaccination slot rather than a general appointment.
  • Note: During periods of low Mpox circulation, some clinics have paused routine offering. Ask explicitly — don't assume it's not available.

Hepatitis A & B

  • Eligibility: Free for gay and bisexual men at GUM clinics.
  • Combined jab: Often given as Twinrix (hepatitis A + B combined).
  • Schedule: Three doses at 0, 1, and 6 months for standard protection. An accelerated 0, 7, 21-day schedule exists if needed (e.g., before travel).
  • Why it matters: Hepatitis A is readily transmitted sexually (oro-anal contact). Hepatitis B can cause chronic liver disease. Both are vaccine-preventable.
  • Note: If you've already had either infection, a blood test can confirm immunity before you vaccinate.

Meningococcal Vaccines (MenACWY / MenB)

These are not routinely offered at GUM clinics and are not free for adults without specific risk factors. If you have HIV, some meningococcal vaccines are recommended — ask your HIV specialist. Otherwise, these are generally private (£50–100+ per dose). See The Vaccine Checklist for the clinical picture.

Where to Get Them

GUM clinic — always your first choice. All three key vaccines (HPV, Mpox, Hep A/B) are dispensed free at GUM/sexual health clinics as part of sexual health services. You can often get vaccines at the same visit as a check-up.

Do not go to your GP for these vaccines. GPs typically: don't stock them, will charge you (as "travel vaccines" outside the NHS schedule), or may not be aware of your eligibility. The GUM clinic is both free and more efficient.

Summary

If you're under 45 and haven't had the HPV vaccine, this is arguably the single highest-value thing you can do at your next clinic visit. It protects against multiple cancers and is genuinely free. The window closes at 45 — use it.

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