Thailand Faces Surge in Hand, Foot, and Mouth Disease Cases

Official Confirmation of Outbreak

Rising Infections in Young Children

The Department of Disease Control has declared a hand, foot, and mouth disease (HFMD) outbreak in Thailand, primarily impacting children under five. Deputy government spokesman Anukul Prueksa-anurak announced on June 29, 2025, that the highly contagious viral illness has seen a sharp increase in cases, posing a significant public health challenge as authorities work to contain its spread.

Seasonal Conditions Fuel Spread

Rainy Season Drives Transmission

The outbreak coincides with the early onset of Thailand’s rainy season, which brings cooler temperatures and higher humidity—ideal conditions for HFMD transmission. These environmental factors, coupled with close contact in schools and daycare centers, have accelerated the virus’s spread. Anukul noted that the seasonal shift has created a perfect storm for the disease, particularly in densely populated areas.

Case Numbers Highlight Concern

Over 21,000 Cases Reported

Between January 1 and June 25, 2025, Thailand recorded 21,315 HFMD cases, with 15,753 affecting children under four, 4,658 in those aged 5–9, and 544 in the 10–14 age group. The majority of cases in young children underscore the vulnerability of this demographic. Health officials are urging heightened vigilance to curb further infections, especially in educational settings.

Understanding HFMD Transmission

How the Virus Spreads

HFMD is caused by enteroviruses, which can lead to reinfections due to multiple strains. The virus spreads through contact with nasal or throat secretions, saliva, blisters, or contaminated surfaces. Anukul emphasized that shared items, like toys or utensils, are common transmission points in childcare environments, making hygiene practices critical to controlling the outbreak’s spread.

Recognizing Symptoms Early

Key Signs to Watch For

Common HFMD symptoms include painful mouth sores on the soft palate, cheeks, and tongue, often accompanied by red rashes or fluid-filled blisters on the palms, soles, and torso. In infants, signs like refusal to nurse, excessive drooling, irritability, or poor appetite are prevalent. Early detection is essential, as timely intervention can prevent complications and reduce transmission among children.

Public Health Response and Prevention

Strategies to Curb the Outbreak

Health authorities are ramping up efforts to educate parents and caregivers on HFMD prevention, including frequent handwashing, disinfecting surfaces, and isolating affected children. Schools are being advised to implement stricter hygiene protocols, as 70% of cases are linked to educational settings, per 2024 health ministry data. The government is also distributing resources to support early diagnosis and treatment, aiming to protect vulnerable populations and halt the outbreak.