Rabies and animal bites: dogs, cats and monkeys

Rabies in Thailand is a small but real risk, and the response rules are simple enough to memorise. Mass vaccination campaigns have reduced rabies in Thai dogs and cats, but a risk persists: Thailand's Department of Disease Control reported nine human rabies deaths in the first eight months of 2026, and dog bites account for the large majority of traveller exposures worldwide. Monkeys add a second concern: macaques at tourist sites can carry rabies and, additionally, B virus, which is rare but dangerous; do not touch or feed monkeys, and keep food hidden around them. If you are bitten or scratched by any mammal, dog, cat, monkey or other, act the same day: first, wash and gently scrub the wound with soap and running water for at least 15 minutes (the CDC says 15-20; WHO guidance says 15); this single step dramatically reduces risk. Apply an iodine antiseptic if available. Then get medical assessment immediately, even for a small scratch: a clinician will decide whether you need rabies vaccine, rabies immunoglobulin, tetanus protection or antibiotics. Do not wait to see whether the animal gets sick, and do not wait for symptoms; once rabies symptoms appear, the disease is essentially always fatal, but post-exposure treatment is highly effective when started promptly. The CDC notes rabies vaccine and immunoglobulin are readily available in provincial and most district hospitals throughout Thailand, so treatment on or near Koh Samui is realistic. If you had pre-exposure vaccination, you still need post-bite doses, just fewer; tell the doctor.

Summary

Rabies remains present in Thailand's stray dog and cat population, and monkeys at tourist sites can also bite and scratch. The CDC advises washing any bite or scratch with soap and running water for at least 15-20 minutes and seeking medical care immediately; post-exposure vaccine is widely available in Thai hospitals.

Key facts

• Rabies persists in Thailand; nine human deaths reported Jan-Aug 2026 (Thai DDC)
• Wash any animal bite/scratch with soap and running water for at least 15 minutes
• Seek medical assessment the same day, even for minor scratches
• Do not wait to observe the animal or for symptoms
• Rabies vaccine and immunoglobulin are readily available across Thailand (CDC)
• Macaque monkeys can also transmit B virus; never touch or feed monkeys

Local tips

• Keep children from touching stray dogs, cats and monkeys
• Carry the 15-minute wash rule in your head; it is the one that matters most
• Any clinic or hospital on Samui can start post-exposure treatment
• Tell the doctor if you had rabies vaccination before travel; the schedule changes