By NewsDesk  @infectiousdiseasenews

Officials with the Southern Nevada Health District has reporting Clark County’s sixth case of West Nile virus.


The individual is a female under the age of 50 who has the neuroinvasive form of the illness.

The Health District is also alerting the community to the ongoing outbreak in the mosquito population. The West Nile and St. Louis encephalitis viruses are being actively transmitted from infected birds to mosquitoes, which then places the public at increased risk for disease.

West Nile virus-positive mosquitoes have been found in 25 unique ZIP codes and mosquitoes testing positive for the St. Louis encephalitis virus have been found in 10 unique ZIP codes so far this season.

West Nile virus (WNV) is the leading cause of mosquito-borne disease in the continental United States.  It is most commonly spread to people by the bite of an infected mosquito. Cases of WNV occur during mosquito season, which starts in the summer and continues through fall. There are no vaccines to prevent or medications to treat WNV in people. Fortunately, most people infected with WNV do not feel sick. About 1 in 5 people who are infected develop a fever and other symptoms. About 1 out of 150 infected people develop a serious, sometimes fatal, illness.