A rapid increase of reported human cases of West Nile in Larimer County this week is the result of the growing population of infected mosquitoes, according to the Larimer County Department of Health and Environment.
The number of cases increased from three a week ago to 12 on Friday, according to an afternoon press release from the health department.
Of the 12 human cases — four severe neuroinvasive cases — three are from the Fort Collins area and one is from the Loveland area, according to the release.
The neuroinvasive cases include meningitis, encephalitis and paralysis, according to the release.
Officials are expecting the number of cases to continue to increase.
“Unfortunately, by the time a West Nile case is reported to us, it is often 3-4 weeks past the time a patient was bitten, and 2-3 weeks past the onset of symptoms,” said Dr. Adrienne LeBailly, Health Department director. “Human cases are reported too late to trigger the most effective interventions when many infected mosquitoes are present in the community.”
For tips on ways to prevent West Nile virus infections, or call 970-498-6700.
