It isn't just humans and horses falling victim to the mosquito-borne West Nile virus.
The College of Veterinary Medicine at the University of Illinois Urbana-Champaign has confirmed that a dog from
Bloomington-Normal has died of the encephalitis. Two squirrels from Chicago and one from Champaign also have been confirmed killed by the virus.
U of I veterinary diagnostic lab director John Andrews says he suspects most dogs are safe from the disease, though elderly dogs may be at risk.
More susceptible are horses. So far this year 413 Illinois horses have tested positive, and about half have died.
As of Tuesday, state health officials had confirmed 21 human deaths in Illinois.