Skip to Content
Medical Term:

Japanese B encephalitis virus


Definition: a virus of the genus Flavivirus (group B arbovirus) occurring particularly in Japan but probably widespread throughout Southeast Asia; the virus is normally present in humans, especially in children, as an inapparent infection, but may cause febrile response and sometimes encephalitis; it may cause encephalitis in horses and abortion in pigs; wild birds are probably the natural hosts and culicine mosquitoes the vectors.

Synonym(s): Russian autumn encephalitis virus

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.