Vietnam Health Alert: Surge in Dengue Fever and Hand, Foot, and Mouth Disease
Health authorities in Vietnam have issued an urgent warning following a significant surge in two pediatric infectious diseases: Hand, Foot, and Mouth Disease (HFMD) and dengue fever. The Ministry of Health is implementing closer epidemiological monitoring to prevent further fatalities as case numbers climb, particularly among young children.
- HFMD: Approximately 26,000 cases and 8 deaths recorded since the beginning of 2026.
- Dengue Fever: 31,927 cases and 4 deaths recorded since the start of the year.
- High-Risk Group: Young children, especially those under 5 in preschools, and kindergartens.
- Critical Concern: The circulation of the EV71 strain of HFMD, which increases the risk of severe illness.
Hand, Foot, and Mouth Disease: The Threat of the EV71 Strain
Hand, foot, and mouth disease is currently experiencing a major outbreak, with a high concentration of cases reported in the South. According to Mr. Vo Hai Son, Deputy Director of the Department of Disease Prevention, the majority of those affected are young children in preschool and kindergarten. This age group is particularly vulnerable due to a lack of personal hygiene awareness and the close-contact nature of daycare environments.
The Impact of EV71
A primary concern for health officials is the detection of the EV71 strain. Test results from several samples indicate that EV71 is circulating at a significant rate. Unlike milder versions of the disease, the EV71 strain is frequently associated with a higher risk of severe illness and neurological complications, prompting the health sector to implement strict response measures to prevent further fatalities.
Seasonal Drivers and Prevention
HFMD typically follows a seasonal pattern, peaking between March to May and September to October. This year, the outbreak was exacerbated by early hot and humid weather, which created favorable conditions for the pathogen to circulate. In response, schools have begun thoroughly disinfecting equipment to curb transmission.
Dengue Fever Outbreaks in Major Cities
Parallel to the HFMD surge, Vietnam is facing an alarming rise in dengue fever. Since the beginning of 2026, the country has recorded 31,927 infections and 4 deaths. The outbreak is particularly severe in major urban centers, including Hanoi and Ho Chi Minh City.
In Hanoi, health authorities have identified multiple outbreak zones across several districts, including:
- Hai Ba Trung
- Ha Dong
- My Duc
- Chuyen My
- Tuong Mai
- Lien Minh
To contain the spread, the Hanoi Center for Disease Control (CDC) has instructed local clinics to intensify environmental sanitation, spray insecticides in high-risk zones, and prioritize the eradication of mosquito larvae.
Comparing the Current Outbreaks
| Metric | Hand, Foot, and Mouth Disease (HFMD) | Dengue Fever |
|---|---|---|
| 2026 Cases (to date) | ~26,000 | 31,927 |
| 2026 Deaths (to date) | 8 | 4 |
| Primary Risk Factor | EV71 strain / Close contact in schools | High mosquito density / Urban clusters |
Frequently Asked Questions
Which age group is most at risk for HFMD?
Children under 5 years vintage, specifically those attending preschool and kindergarten, are at the highest risk due to their developing hygiene habits and frequent interaction with other children.
Why is the EV71 strain more dangerous?
The EV71 strain is associated with a higher probability of severe illness and can lead to serious neurological complications compared to other strains of the virus.
How is the government responding to the dengue outbreak?
Authorities are focusing on early case detection, ramping up surveillance, and implementing aggressive mosquito control measures, including insecticide spraying and environmental sanitation in high-risk districts.
Looking Ahead
The concurrent rise of HFMD and dengue fever presents a significant challenge to Vietnam’s healthcare system. With the prevalence of the EV71 strain and the expansion of dengue clusters in major cities, continuous epidemiological surveillance and public adherence to hygiene and sanitation protocols remain critical to reducing mortality and controlling the spread of these infectious diseases.