The fact is that the West Nile, and other mosquito-transmitted viruses, have been found in wild cetaceans. SeaWorld has been a leader for more than 50 years in the conservation of these animals, including the peer-reviewed publication
to help researchers betters understand the impact illnesses like West Nile on cetaceans (St. Leger, J., Wu, G., Anderson, M., Dalton, L., Nilson, E. and Wang, D. 2011. West Nile virus infection in killer whale, Texas, USA, 2007. Emerging Infectious Diseases
17(8): 1531-1533.). In fact, learning that cetaceans, both at SeaWorld and in the wild, can be infected with illnesses like encephalitis has helped researchers to better understand, and ultimately to better protect, these animals.