Serological evidence of persistence of Japanese encephalitis virus activity in Bihar, India.

A total of 64 sera samples from ducks, 212 from 245 fowls, 1 from 16 sparrows and 5 from human were examined for HI and CF antibodies to Japanese encephalitis (JE), West Nile (NW), Dengue-2 (DN-2), and Chikungunya (CHIK) viruses. The results were compared with those obtained earlier while examining pigs' sera from the same area. The results revealed that ducks, fowls and peridomestic sparrows possessed antibodies to JEV. JEV activity in ducks and fowls was significantly higher compared to its activity in pigs in the same area reported earlier indicating persistence of its activity.