A significant surge in hand, foot, and mouth disease (HFMD) cases is prompting concern among health officials, particularly in Hanoi, Vietnam. The National Children’s Hospital there reported nearly 3,000 cases in the first two months of 2026, a substantial increase compared to the same period last year. This rise in HFMD, a common viral illness primarily affecting young children, is leading to increased hospitalizations and raising questions about potential contributing factors and preventative measures.
The recent data from the National Children’s Hospital reveals a marked escalation in the disease’s impact. Hospitalizations have doubled since the beginning of 2025, with approximately one-third of the nearly 3,000 children diagnosed requiring inpatient care. This represents a 56% increase in overall cases, signaling that the region is currently experiencing a peak season for HFMD. Whereas typically a mild illness, the growing number of severe cases underscores the importance of early detection and appropriate medical attention.
Understanding Hand, Foot, and Mouth Disease
Hand, foot, and mouth disease is caused by viruses belonging to the Enterovirus genus, most commonly Coxsackievirus A16 and Enterovirus 71. The illness is highly contagious and spreads through direct contact with nasal secretions, saliva, blister fluid, or stool of an infected person. It’s particularly prevalent in childcare settings, where close proximity and shared toys facilitate transmission. The Centers for Disease Control and Prevention (CDC) notes that HFMD is not related to foot-and-mouth disease, which affects livestock. Learn more about HFMD from the CDC.
The initial symptoms of HFMD often mimic those of a common cold, including fever, fatigue, sore throat, and loss of appetite. However, the hallmark of the disease is the development of painful sores in the mouth, typically on the tongue, gums, and inside of the cheeks. These are followed by a rash of flat or slightly raised spots on the palms of the hands, soles of the feet, and sometimes on the buttocks and knees. These spots can develop into blisters, which can be uncomfortable but generally aren’t itchy.
Severity and Potential Complications
While the majority of HFMD cases are mild and resolve within 7 to 10 days with supportive care, some children can experience more severe complications. Dr. Nguyen Van Lam, Director of the Center for Tropical Diseases at the National Children’s Hospital, explained that the disease is caused by multiple viral strains, meaning immunity to one strain doesn’t guarantee protection against others. Serious, though rare, complications include encephalitis (inflammation of the brain), meningitis (inflammation of the membranes surrounding the brain and spinal cord), myocarditis (inflammation of the heart muscle), and acute pulmonary edema (fluid buildup in the lungs).
These complications, while uncommon, can be life-threatening and require immediate medical intervention. Parents should seek medical attention if their child exhibits symptoms such as stiff neck, seizures, difficulty breathing, or signs of dehydration. Early diagnosis and monitoring are crucial for preventing these severe outcomes.
Prevention and Management Strategies
Currently, there is no specific antiviral medication to treat HFMD. Treatment focuses on alleviating symptoms and preventing dehydration. This includes providing plenty of fluids, offering soft, easy-to-swallow foods, and ensuring adequate rest. Over-the-counter pain relievers can aid manage fever and discomfort, but parents should always consult with a healthcare professional before administering any medication to children.
Preventing the spread of HFMD relies heavily on good hygiene practices. Frequent and thorough handwashing with soap and water is paramount, especially after changing diapers, using the toilet, and before preparing food. Disinfecting frequently touched surfaces, such as toys and doorknobs, can also help reduce the risk of transmission. Children with HFMD should be kept home from school or daycare until their fever is gone and the blisters have dried up to prevent further spread.
Health officials are continuing to monitor the situation closely and are expected to provide updated guidance on HFMD prevention and management in the coming weeks. Parents and caregivers should remain vigilant for symptoms and consult with a healthcare provider if they have any concerns. The National Children’s Hospital in Hanoi will likely release further data on the outbreak’s progression in their monthly epidemiological report.
Disclaimer: This article provides general information about hand, foot, and mouth disease and should not be considered medical advice. Always consult with a qualified healthcare professional for diagnosis and treatment of any medical condition.
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