Question

All are true regarding Japanese encephalitis except ?

• A. Caused by flavivirus
• B. Humans are dead-end hosts
• C. Transmitted by culex
• D. Cattles are amplifier hosts

Answer 1

The Correct Option is D

Japanese encephalitis is a disease caused by the flavivirus, which is transmitted primarily by Culex mosquitoes. In the transmission cycle, humans are considered dead-end hosts, meaning that they do not contribute to the transmission of the virus, typically due to low viremia that is insufficient for mosquito infection.

The statement "Cattles are amplifier hosts" is incorrect. In the context of Japanese encephalitis, pigs are the primary amplifier hosts, effectively facilitating the spread of the virus within endemic regions. Cattle do not serve this role in the transmission cycle of the Japanese encephalitis virus.