Hanoi has recorded its first case of Japanese encephalitis this year. May to October is the peak period for Japanese encephalitis. This is a dangerous disease that can leave sequelae, even cause death.

Japanese encephalitis is an acute infectious disease caused by a virus that damages the human central nervous system (brain).

Japanese encephalitis outbreaks typically occur from May to October. Most cases occur in the south during the rainy and early dry seasons and in the north during late summer and autumn.