About Japanese Encephalitis true statement
Correct Answer: Pigs are amplifier hosts
Description: (A) Pigs are amplifier hosts Park17-239]# Japanese Encephalitis:> Animal hosts: Among the animal hosts, pigs have been incriminated as the major vertebrate hosts for JE virus. In some places, up to 100 per cent of pigs may be infected with JE virus.> Infected pigs do not manifest any overt symptoms of illness but circulate the virus so that mosquitoes get infected and can transmit the virus to man.> The pigs are thus considered as "amplifiers" of the virus> Man is an incidental dead-end host (Man to Man transmission has not so far been recorded). Incubation period in Man - not exactly known, about 5-15 days.> Not all persons bitten by infected mosquitoes develop the disease Case fatality rate - 20-40%> JE-vax, green cross are some of the formalin-indicated mouse brain derived lastly vaccines used.
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