LARIMER COUNTY, Colo. (CBS4)- Two human cases of West Nile virus have been confirmed in Larimer County, raising concerns about the spread of the potentially deadly disease.
Delta County previously had the only reported human case of West Nile which was reported earlier this month.
Boulder County began spraying for mosquitoes in early July after mosquito pool testing came back positive. Spraying was concentrated in Longmont neighborhoods, parks and marshy areas.
Both Golden and Lafayette confirmed that mosquito pools have tested positive for West Nile virus, but neither city has confirmed any human cases.
More spraying will take place in Lafayette this week. Because of that the city has moved a planned Phat Daddy concert Wednesday night from Waneka Lake Park to Festival Plaza.