Thailand warns of hand foot and mouth disease outbreak

BANGKOK – The Thai government has issued a public health advisory warning parents to be on the alert for hand, foot and mouth disease (HFMD),a contagious illness that spreads rapidly among young children during the rainy season.

Deputy government spokesman Anukool Pruksanusak announced on June 28 that the Department of Disease Control (DDC) under the Ministry of Public Health has detected a significant rise in HFMD cases as cool and humid conditions set in.

He stressed that parents must ensure proper hygiene and health monitoring for their children, particularly those under five, who are the most vulnerable.

“As the rainy season begins, increased humidity creates ideal conditions for the spread of communicable diseases, especially among young children,” said Mr Anukool.

Over 21,000 cases reported in 2025

Between Jan 1 and June 25, 2025, Thailand recorded 21,315 HFMD cases, broken down as follows:

• Children aged 0 to 4 years: 15,753 cases
• Aged 5 to 9 years: 4,658 cases
• Aged 10 to 14 years: 544 cases

The disease, caused by enteroviruses (most commonly coxsackievirus),often reappears in children even after previous infection. It spreads through contact with nasal secretions, saliva, fluid from blisters or sores, and contaminated objects or surfaces. The DDC notes that outbreaks are most common between June and August.

Common symptoms and when to seek medical help

Typical symptoms include low-grade fever, painful sores inside the mouth – particularly on the soft palate, cheeks and tongue – making infants refuse milk or food, and drooling. Children may also develop red rashes or small fluid-filled blisters on the palms, soles and torso.

Parents should seek medical attention immediately if their child shows worsening symptoms, such as:

• High fever
• Difficulty eating or drinking
• Lethargy
• Seizures
• Rapid breathing or persistent vomiting

Public health guidance for parents and schools

For parents:

• Encourage