Japanese encephalitis is at its peak, posing a high risk of spreading.

The Department of Preventive Medicine (Ministry of Health) reports that viral encephalitis (including cases of Japanese encephalitis) has been on the rise in recent weeks.

High fever can be a symptom of encephalitis.

Japanese encephalitis is currently at its peak, posing a high risk of spread if not fully vaccinated. The disease is most concentrated in the lowland and midland provinces of Northern Vietnam, usually appearing from April to October.

According to Mr. Tran Dac Phu, Director of the Department of Preventive Medicine, in the first six months of this year, cases of Japanese encephalitis have been recorded in the following provinces and cities: Hanoi, Bac Giang, Dien Bien, Son La, Hai Phong, Thanh Hoa, Thai Binh, Lao Cai...

Each year, the country records between several hundred and 1,000 cases of viral encephalitis, and about 20% of these are Japanese encephalitis. Japanese encephalitis commonly affects children under 15 years old, has a high mortality rate (which can be as high as 10-20%), and can cause long-term sequelae affecting physical and intellectual development.

Common symptoms include: sudden high fever (39-40°C) accompanied by headache, nausea and vomiting, followed by convulsions, muscle spasms, paralysis, and mental disturbances (agitation, delirium, lethargy, confusion, coma).

According to TNO