The Hanoi, Vietnam Department of Health (computer translated) released new data on dengue fever and hand, foot and mouth disease (HFMD) in the city this year and it shows dengue cases down this year while HFMD cases are increasing.
From Jan. 1 through May 13, Hanoi health officials report 95 cases of dengue fever, down significantly compared to the same period last year. However, cases of HFMD show signs of increasing. There are 356 cases of HFMD in the city, including 75 cases in the most recent week.
HFMD is typically a benign and self-limiting disease. Most common in young children, it presents as fever, oral lesions and rash on the hands, feet and buttocks. The oral lesions consist of rapidly-ulcerating vesicles on the buccal mucosa, tongue, palate and gums. The rash consists of papulovesicular lesions on the palms, fingers and soles, which generally persist for seven to 10 days, and maculopapular lesions on the buttocks.
It is spread to others by close personal contact, coughing or sneezing or by contact with contaminated objects and surfaces. It can be difficult to eradicate in schools, group living communities and daycares. Although it is not serious for most people, the infection can cause significant pain while eating, walking and writing.
Hand, foot, and mouth disease is caused by viruses that belong to the Enterovirus genus (group). This group of viruses includes polioviruses, coxsackieviruses, echoviruses, and enteroviruses. Coxsackievirus is the most common cause of HFMD.