With mosquitoes in Weld County testing positive for West Nile virus, officials urge residents to take action to prevent infection. Weld County officials on Monday announced the first mosquitoes of the ...

Mosquitoes in two areas of Weld County have tested positive for West Nile virus, though no human cases have yet been reported in the county. Mosquitoes are trapped weekly in three zones across Weld ...

The county will conduct pesticide treatments in the Rolando neighborhood this week after discovering the West Nile virus last ...

Vaccines are available to prevent illness in horses, but the only protection for humans is to prevent mosquito bites. AgriLife reports that mosquitoes tend to feed at dusk and throughout the night, ...