West Nile virus found in Davis, Duchesne

Davis and Duchesne counties now have confirmed West Nile virus activity.

The virus, which is carried by mosquitoes, has been found in sentinel chickens in the two counties. The sentinel flocks are maintained by counties to determine if the virus is in the area.

Earlier in June, a human case was reported in Grand County. The earliest activity in the state was detected in a mosquito pool in Salt Lake County.

Health officials recently issued a reminder to Utahns to take precautions against the virus, which is usually minor in its symptoms but which can be deadly. About 80 percent of the time when people are infected, they don't develop symptoms. The other 20 percent do. And about 1 in 150 human infections results in very serious, even life-threatening neuro-invasive symptoms.

For more information, go to www.health.utah.gov/epi.