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Are birds the only species that is susceptible to West Nile Virus infection?

West Nile Virus (WNV) has been detected in at least 48 species of mosquitoes, over 320 species of birds, at least 2 species of reptiles, and more than 25 mammalian species, including horses and humans.

Birds are the natural host and reservoir of WNV. Although other animals are susceptible to WNV infection, only birds develop a high enough virus load to transmit the infection to an uninfected mosquito.

 Learn more: USGS National Wildlife Heath Center, CDC West Nile Virus website

Tags: Birds, West Nile Virus