Hand, Foot and Mouth Disease Outbreak Raises Concerns in Vietnam
Vietnam is grappling with a significant surge in hand, foot and mouth disease (HFMD), a highly contagious illness, with at least three fatalities reported since the beginning of the year. The Ho Chi Minh City Centre for Disease Control (CDC) has confirmed these figures, highlighting the growing public health challenge.
In the most populous city alone, approximately 7,300 cases of HFMD have been documented since January. Between March 9th and 15th, the city recorded a notable 837 new cases. The severity of the outbreak is further underscored by the identification of at least eight severe cases, with six of these originating from other provinces and being treated in the city.
The disease is spreading rapidly, with health authorities identifying 30 school-based clusters and 49 community clusters. Certain areas have experienced particularly sharp increases, with Ho Tram Commune alone reporting four distinct HFMD clusters.
The Threat of Enterovirus 71 (EV71)
A primary concern for health officials is the detection of Enterovirus 71 (EV71) in surveillance samples. This particular strain accounted for a concerning 25 per cent of the samples tested. EV71 is notorious for its high virulence and rapid transmission capabilities. Crucially, it can lead to severe neurological and respiratory complications in young children, and in some devastating instances, has been fatal for children under five years old.
While HFMD is most commonly associated with children under the age of five, it is important to note that adults are also susceptible to contracting the virus, according to the US Centres for Disease Control and Prevention (CDC).
Understanding Transmission and Symptoms
HFMD spreads through various channels, making it a challenge to contain. The virus can be transmitted through respiratory droplets expelled when an infected person sneezes, coughs, or speaks. Direct contact with contaminated objects and surfaces is another common route, as is contact with fluid from the characteristic blisters and with stool.
Dr. Nguyen Van Lam, Director of the National Children’s Hospital’s Centre for Tropical Diseases, emphasised the widespread nature of the disease in young children. “Hand, foot and mouth disease is common in children under five and can spread easily in the community,” he stated.
The typical symptoms of HFMD include:
* A fever
* A sore throat
* Painful mouth sores that can develop into blisters
* A rash, which usually appears on the hands and feet
The CDC advises that most children experience mild symptoms and recover within seven to 10 days without specific medical intervention. However, Dr. Lam cautioned that the apparent severity of the skin lesions does not always correlate with the overall severity of the illness. “The number of skin lesions does not reflect how severe the disease is. Some children may only have mild symptoms such as fever or mouth ulcers but can worsen very quickly,” he explained.
Prevention and Public Health Measures
Preventing the spread of HFMD requires a multi-faceted approach involving individual hygiene and community-level interventions. Key recommendations include:
- Frequent Handwashing: Washing hands thoroughly with soap and water for at least 20 seconds is paramount, especially after changing diapers.
- Assisting Children with Hygiene: Caregivers should actively help young children wash their hands and ensure any blisters are kept clean.
- Avoiding Face Touching: Individuals should refrain from touching their face with unwashed hands.
- Disinfection: Regularly cleaning and disinfecting frequently touched surfaces and shared items, such as toys, is crucial.
In response to the escalating situation, the health ministry has engaged with the education department to ensure schools are adequately equipped with essential handwashing facilities, including access to clean water and soap. Schools are also being urged to collaborate closely with local health authorities to bolster public awareness campaigns. These campaigns are specifically targeting the risks associated with the EV71 strain and aim to empower parents to recognise early symptoms and seek prompt medical attention for their children.
Proposals for Enhanced Control Measures
The health ministry is also exploring more stringent measures to control the spread of infectious diseases. This week, a proposal was put forth to implement mandatory medical isolation for nine infectious diseases, including HFMD. This would be coupled with a rapid-response process designed to be activated within hours of a detection.
The proposed isolation measures would apply to four categories of individuals:
1. Confirmed cases of the disease.
2. Suspected cases.
3. Carriers of the virus.
4. Individuals who have been exposed to infectious agents.
The location of isolation could vary, including at home, other residences, medical facilities, or at border gates. The final decision on the isolation location would rest with commune-level authorities, hospital directors, or border officials. In situations where dedicated facilities are insufficient, authorities may also requisition spaces such as schools, dormitories, military or police barracks, hotels, factories, and apartment buildings for isolation purposes.
