Deadly Melioidosis Outbreak Claims 40 Lives Across Four Provinces in Thailand with 538 Infected
Nikhil Prasad Fact checked by:Thailand Medical News Team Oct 23, 2026 56 minutes ago
Health authorities in northeastern Thailand have issued urgent warnings following a deadly surge in melioidosis infections, commonly known as soil fever, with 538 cases and at least 40 deaths reported across four provinces in 2026.
A deadly melioidosis outbreak across four northeastern Thai provinces has reportedly infected 538 people,
with at least 40 deaths, prompting warnings about contaminated soil and floodwater
The disease, caused by bacteria found naturally in soil and water, poses a particularly serious threat to farmers, elderly residents, and people exposed to contaminated floodwater.
Four Provinces Report Alarming Infection Numbers
Dr. Sailaak Phimkho, director of the Office of Disease Prevention and Control 9 in Nakhon Ratchasima, revealed that surveillance data covering January 1 to October 22, 2026, showed widespread infections.
Buri Ram recorded 245 cases and 12 deaths, followed by Surin with 139 cases and 11 deaths. Nakhon Ratchasima reported 136 cases and 17 deaths, while Chaiyaphum registered 50 cases and five deaths.
Although the overall report cited 538 infections, the provincial figures total 570 cases and 45 deaths, suggesting discrepancies in the reported statistics.
Older Adults Face the Greatest Threat
Individuals aged 65 and older accounted for the highest number of infections, followed by those aged 55–64 and 45–54.
Health officials warned that prolonged rainfall and flooding increase the likelihood of exposure to contaminated soil, mud, and standing water.
How Melioidosis Infects Humans
Melioidosis is caused by Burkholderia pseudomallei, a potentially deadly bacterium found in tropical environments.
The pathogen enters through skin wounds, inhalation of contaminated droplets or dust, or consumption of contaminated food and water.
As highlighted in this
Thailand Medical News report, farmers and residents cleaning flood-damaged homes face particularly elevated exposure risks.
Health Authorities Urge Immediate Precautions
Residents working in agricultural fields or flooded environments should wear rubber boots, protective gloves, long pants, and waterproof clothing.
People with open wounds should avoid potentially contaminated soil and water until their injuries have healed.
The reported fatalities highlight the continuing danger of melioidosis in Thailand, emphasizing the need for stronger public awareness, preventive protection, and prompt medical evaluation when symptoms develop following environmental exposure.
Reference:
https://www.ddc.moph.go.th/odpc9/news.php?news=61026&deptcode=odpc9&news_views=64
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