Thai Health Ministry Issues Leptospirosis Warning Amid Flooding
The Department of Disease Control has advised the public to take precautions against leptospirosis as floodwaters persist across parts of Thailand.
On September 29, 2026, Dr. Montien Khanasawat, Director-General of the Department of Disease Control, issued a public health warning regarding the risk of leptospirosis during the current flooding season. Health officials emphasize that the bacteria responsible for the disease can enter the body through skin abrasions, open wounds, or mucous membranes such as the eyes, nose, and mouth when individuals come into contact with contaminated water or mud.
For residents and travelers in affected areas, the Ministry recommends avoiding wading through floodwaters whenever possible. If contact is unavoidable, individuals are advised to wear rubber boots and use waterproof bandages on any existing wounds. Prolonged exposure—defined as three hours or more—significantly increases infection risk. After contact with floodwater, it is essential to wash thoroughly with soap and clean water. Additionally, maintaining proper waste management is crucial to prevent attracting rodents, which are primary carriers of the bacteria.
Symptoms typically manifest between 5 and 14 days after exposure, though the incubation period can extend up to 30 days. While the Ministry has provided these preventative guidelines, residents should monitor local health reports for updates on specific high-risk zones. Those experiencing symptoms after potential exposure should seek medical attention promptly. The full extent of the current outbreak's impact remains subject to ongoing monitoring by health authorities.
