Pills (PrEP) protect you from HIV. Condoms protect you from fluids. But some viruses are stubborn—they live on skin, or they survive on surfaces.

Vaccines are your "Software Updates." You patch the vulnerability once, and you are protected for years (or life).

If you are sexually active, this is your standard loadout.

1. HPV (Gardasil 9)

The Threat: Human Papillomavirus.

  • What it does: Genital warts (unsightly, annoying) and Cancer (Anal, Throat, Penile).
  • The Myth: "It’s a girl’s vaccine."
  • The Reality: Men get anal cancer and throat cancer from HPV. It is rampant in the gay community. Guys who have not been vaccinated have especially high exposure rates.
  • The Cancer Numbers: Gay and bisexual men get anal cancer at rates 20–40x higher than straight men. Throat cancer from HPV is now the most common HPV-related cancer in men overall. These are largely preventable cancers. The vaccine exists.
  • The Protocol:
    • 2 shots (if you start your series before age 15): given 6–12 months apart.
    • 3 shots (if you start at age 15 or older): given over 6 months (Day 0, Month 2, Month 6).
    • Age: Approved up to 45. Standard recommendation is through 26. If you’re 27–45 and missed it, bring it up with your doctor — coverage varies, but so does anal cancer.
    • Already exposed? You’ve probably encountered one strain, not all nine. The vaccine still covers what you haven’t been hit with yet. Late is still worth it.

Vaccination is the primary prevention layer, but it doesn’t cover HPV you’ve already been exposed to. If you’re sexually active, anal cancer screening catches any pre-cancer changes that vaccination doesn’t prevent.

2. Hepatitis A & B (Twinrix)

The Threat: Liver damage.

  • How it spreads:
    • Hep A: "Ass to Mouth" (Rimming). It’s in feces. Microscopic amounts are enough.
    • Hep B: Blood and semen. Highly infectious (more than HIV).
  • The Protocol:
    • Usually a combo vaccine (Twinrix).
    • 3 shots (Day 0, Month 1, Month 6).
    • Status: Once you complete the series, you are usually immune for life.
  • Note on Hep C: No vaccine exists. Spreads blood-to-blood — shared toys, fisting, rough sex. It's curable now with a short course of antivirals, but prevention is avoiding blood contact and testing at minimum every 3 months if you're higher risk. Full picture: Hepatitis C: What MSM Need to Know

3. Mpox (Jynneos / Imvanex)

The Threat: Painful lesions, fever, scars, and potential scarring.

  • The Reality: Still circulating. Spreads skin-to-skin — sex, prolonged close contact. The strain from the 2022 outbreak hasn't gone away; more aggressive variants have shown up in outbreaks internationally since.
  • The Protocol:
    • Standard (subcutaneous): 2 shots, 28 days apart.
    • Intradermal dosing is approved in some countries (smaller dose between skin layers, same schedule)—ask your clinic.
    • Effectiveness: Even if you catch it, vaccinated means a significantly milder ride. Transmission risk drops too.
    • Booster: If you received both doses during the 2022 outbreak, your protection is still active.

4. Meningitis ACWY & B

The Threat: Bacterial Meningitis.

  • How it spreads: Deep kissing (saliva exchange).
  • The Reality: Outbreaks cluster in festival and heavy partying scenes. It can kill within 24 hours of symptom onset.
  • The Protocol:
    • MenACWY (1 shot, booster after 5 years if risk continues).
    • MenB (2 shots, 1 month apart).

The Strategy:

You don’t need to get them all at once.

  1. Priority 1: Hep A/B & Mpox (The basics—highest risk for gay and bisexual men).
  2. Priority 2: HPV (The long-term investment against cancer).
  3. Priority 3: Meningitis (If you’re in the party/festival scene).

Check your records. You might have had some as a child, but immunity fades. Ask for a "Titer Test" (blood test) to see if you still have protective antibodies before re-doing the full series.

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