HIV/AIDS in Thailand 2026: Latest Figures, Youth Trends and What Travellers Should Know
[ Back to News Page ] Dated: 28-Sep-2026
Thailand has one of the most successful HIV responses in Asia, yet thousands of people are still newly diagnosed every year, and more than a third of them are young people aged 15 to 24. Here is what the latest figures from Thailand's Department of Disease Control show, and what they mean for Malaysians who live, work or travel there.
HIV and AIDS in Thailand: a short history
Thailand's first AIDS case was reported in 1984. From 1988, HIV spread rapidly through several population groups, making Thailand one of the hardest-hit countries in Asia in the early 1990s.
The country's response became a global model. The national 100% Condom Programme, launched in 1991, sharply reduced new infections. In 2016, the World Health Organization validated Thailand as the first country in Asia to eliminate mother-to-child transmission of HIV and syphilis. Today, antiretroviral therapy (ART) is provided through Thailand's public health schemes, including the Universal Coverage Scheme (the "Gold Card") and Social Security.
Latest HIV figures in Thailand (2025–2026)
- People living with HIV: about 558,000 to 565,000, according to 2026 reports citing the Department of Disease Control.
- New diagnoses: 13,357 people were newly diagnosed in 2025.
- Estimated new infections: around 8,000 to 9,000 per year.
- Main route of transmission: about 96% of new infections are linked to unprotected sex.
- Undiagnosed: an estimated 50,000 people are living with HIV without knowing it.
Figures differ slightly between reports because some count new diagnoses (people tested and confirmed that year) while others estimate new infections (people who acquired HIV, whether or not they have been tested).
Why young people are most affected
Around 35% of new HIV diagnoses in Thailand are among people aged 15 to 24; in Chiang Mai, the figure reported is close to half. Health officials and community groups point to several reasons:
- Inconsistent condom use, especially with casual partners met through dating apps.
- Low awareness and use of PrEP (pre-exposure prophylaxis) among younger people.
- Fear, stigma and embarrassment that delay testing.
- Many infections go unnoticed because early HIV often causes mild or no symptoms.
Where HIV cases are concentrated
Thirteen provinces account for more than half of people living with HIV in Thailand. Bangkok has the largest number (about 88,500), followed by Chonburi (about 31,000) and Chiang Mai (about 24,000). Tourist and urban centres generally report higher numbers because of larger, more mobile populations.
Thailand's 2030 goals
Thailand aims to end AIDS as a public health threat by 2030. National targets include:
- Fewer than 1,000 new HIV infections a year.
- Fewer than 4,000 HIV-related deaths a year.
- HIV- and gender-related stigma and discrimination below 10%.
To get there, Thailand is expanding "test and treat" (starting ART straight after diagnosis), online and community-based testing, and PrEP. A pilot of injectable lenacapavir for HIV prevention is planned from the end of 2026, covering about 2,400 people at nine sites.
What this means for Malaysians travelling to Thailand
Thailand is a popular destination for Malaysians for holidays, work and study. HIV is not spread through everyday contact, food, swimming pools or insect bites. The main risk is unprotected sex. To protect yourself:
- Use condoms consistently with new or casual partners.
- Know about PEP. Post-exposure prophylaxis must be started within 72 hours of a possible exposure. It is available at hospitals and many clinics in Thailand and Malaysia.
- Consider PrEP if you are at ongoing risk. Speak to a doctor before you travel.
- Get tested after a possible exposure, and repeat the test after the window period.
Frequently asked questions
Is HIV common in Thailand?
Thailand has one of the larger HIV epidemics in Southeast Asia, with around 560,000 people living with HIV. Most are on treatment through Thailand's public health system, and new infections are far lower than in the 1990s.
Can I get PEP in Thailand?
Yes. PEP is available at hospitals and many clinics, particularly in Bangkok and major tourist areas. It must be started within 72 hours of exposure, so seek help as soon as possible.
When should I test after returning from Thailand?
If you had a possible exposure, test as soon as you are concerned and again after the window period (up to 3 months for antibody tests). If you have symptoms or were recently exposed, see a doctor.
Read more: What is HIV/AIDS? · How HIV is transmitted · Symptoms of HIV
Prefer private screening at home?
The iCare HIV 1&2 Home Test Kit lets you screen privately with a fingertip blood sample. A reactive result must be confirmed at a clinic.
Sources: Thailand Department of Disease Control figures as reported by The Nation Thailand, “Thailand faces its 2030 HIV target with youth infections still high,” 13 September 2026 (nationthailand.com); Chiang Rai Times, “Thailand Sees a Surge in Youth HIV Cases in 2026,” 2 September 2026 (chiangraitimes.com); Thailand News, “HIV Infections Rising Sharply Among Thai Youth,” 17 February 2026 (thailandnews.co); UNAIDS Thailand country page (unaids.org). This article is for general information and is not medical advice.
