Chikungunya
A mosquito-borne virus causing sudden fever and severe joint pain. Symptoms usually resolve in 7–10 days but can linger for months.
What it is
Chikungunya is a mosquito-borne virus that causes sudden high fever and severe joint pain. Most people recover in a week or two, but joint pain can linger for months.
How it spreads
Through the bite of infected Aedes mosquitoes — the same daytime biters that spread dengue and Zika. It is found in tropical and subtropical regions worldwide.
Dosing & timing
- Primary series
- A single shot in your arm.
- Boosters
- No booster recommendation yet — long-term protection is still being studied.
- Before you travel
- Get the dose at least 2 weeks before travel where possible.
Who should consider it
CDC recommends the vaccine for travellers aged 12 and older going to a country or territory with an active chikungunya outbreak. Consider it for extended stays of 6 months or more in areas with elevated risk, even without an active outbreak.
Countries where CDC recommends this
Click any country for its full vaccine list.
Recommended for most travellers
Recommended for some travellers
Side effects and safety
Common (most resolve in a day or two)
- Soreness where the shot was given
- Headache
- Muscle or joint aches
- Tiredness
Serious but rare
- Severe allergic reaction (very rare)
Who should not get it
Skip it if you have had a severe allergic reaction to a vaccine component. People with weakened immune systems may not respond as well. Pregnant travellers should discuss timing with their doctor — at minimum, vaccinate at least 2 weeks before the expected delivery date.
Common questions
Is chikungunya the same as dengue?
No, but they spread the same way and the early symptoms look similar. The lingering joint pain is what sets chikungunya apart.
If I'm vaccinated, can I stop using mosquito repellent?
No. Mosquito bite avoidance still protects you against dengue, Zika, and other illnesses the same mosquitoes carry.
Who should not get this vaccine?
Anyone with a known severe allergy to a vaccine component. Pregnant travellers and those with weakened immune systems should talk to their doctor.
Plan ahead: Talk to a travel health doctor 4 to 6 weeks before departure to confirm whether your destination has an active outbreak.
Source: CDC — Chikungunya.
Disclaimer:This information is for general guidance only, based on CDC Travelers' Health. It does not replace advice from a qualified travel health professional. Consult a doctor 4–6 weeks before your trip.