Although the Japanese encephalitis virus can be found in birds, the main route of infection is via pigs where the virus reproduces rapidly before entering the mosquito population.

• 虽然雀鸟身上带有日本脑炎病毒,然而猪只仍是主要的传播媒介。病毒在猪只身上迅速繁殖,然后进入蚊子种群。