31.   The spraying is part of an effort to battle the West Nile and Eastern equine encephalitis viruses.

32.   The state Department of Environmental Protection has begun trapping mosquitoes to test for the West Nile-like strain of the encephalitis virus.

n. + virus >>共 196
flu 11.16%
stomach 10.81%
smallpox 6.24%
influenza 5.18%
hepatitis 4.92%
herpes 4.83%
macro 3.51%
polio 3.34%
bird 3.34%
encephalitis 2.81%
encephalitis + n. >>共 15
virus 54.24%
outbreak 15.25%
case 6.78%
epidemic 3.39%
vaccine 3.39%
endemic 1.69%
expert 1.69%
mosquito 1.69%
patient 1.69%
scare 1.69%
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