Larimer County has concluded its air attack against mosquitoes and now officials are waiting for data to see if their efforts worked.
Two planes sprayed insecticide in parts of the county Monday
ight and last night to try to stem the spread of West Nile virus.
Larimer County is among the hardest by the illness that is carried
Some area residents complained that the insecticide could pose a health risk or endanger people sensitive to chemicals. The Poudre Valley Hospital says it had no reports of problems.
The number of confirmed human cases in Colorado has topped one thousand and 16 people have died.