San Joaquin County announced Friday that it now has its first confirmed case of West Nile virus infection in a horse for 2012. The horse is from Manteca and was not vaccinated against the virus.
There is also a new human case, that of a woman in her early 70s residing in the south county area. The woman was hospitalized with the neuroinvasive form of the disease and has since been released.
West Nile virus is most commonly transmitted to humans and animals the same way, through the bite of a mosquito harboring the virus.
Although there is no vaccine yet for humans, there is for horses.