Variation in susceptibility among clony strains of culex tritaeniorhynchus to japanese encephalitis virus infection

Abstract

The susceptibilities to Japanese encephalitis virus of eight strains of Culex tritaeniorhynchus, seven domestic and one from Taiwan, were studied quan titatively by the membrane feeding technique. Six of them, originated from the main islands of Japan (Honshu and Kyushu) and Okinawa, had moderate suscepti bilities to the virus. One strain from Amami Island was slightly more susceptible than moderate strains and was sixfold more susceptible than Taiwan strain. The differences, were statistically significant, but too small to perform genetic analysis for the susceptibility of the mosquito to the virus. © 1980, National Institute of Infectious Diseases, Japanese Journal of Infectious Diseases Editorial Committee. All rights reserved.