Life Cycle
Mosquitoes, from the genus Culex, become infected by feeding on birds infected with the Saint Louis encephalitis virus. Infected mosquitoes then transmit the Saint Louis encephalitis virus to humans and animals during the feeding process. The Saint Louis encephalitis virus grows both in the infected mosquito and the infected bird, but does not make either one sick. Only infected mosquitoes can transmit Saint Louis encephalitis virus. Once a human has been infected with the virus it is not transmissible from that individual to other humans.
Read more about this topic: Saint Louis Encephalitis
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