West Nile Virus Outbreak: Las Vegas Struck by Aggressive Mosquito Invasion


The City of Lights, Las Vegas, finds itself in the unforgiving grip of an unwelcome buzz. The Southern Nevada Health District (SNHD) reveals that hordes of mosquitos infected with the West Nile virus are teeming in the city, their numbers surpassing 3,000 – a chilling record in Las Vegas’ history.

These infected mosquitos are part of 91 identified pools, scattered across 16 distinct zip codes under the extensive surveillance of the health agency, the SNHD’s most recent communiqué revealed.

Follow us on Google News! ✔️

Health officials, however, point their fingers at an unexpected villain – Aedes aegypti, a species notorious for its aggressive disposition. Unlike its brethren, this species gravitates more towards humans than birds or other creatures, a behavior that has contributed significantly to the escalating problem.

The sudden invasion of Aedes aegypti still remains a mystery. Regardless, this marks the first occasion in Clark County that these mosquitos have been found carrying the West Nile virus.

Approximately one in five individuals bitten by an infected mosquito will manifest symptoms. These may range from a fever, headaches, body aches, to more severe ones; vomiting, diarrhea, and even a rash.

The peril escalates, though, with every 150 infected cases noted. The risk of severe complications arises, and each 1,500th case is predicted to be fatal.

Health officials sternly advise current residents and potential visitors to employ preventive measures, particularly during the sweltering summer months. Protective clothing, primarily consisting of loose-fitting garments and long sleeves, proves to be a useful deterrent. Stagnant water also proves to an attractant and must be avoided. Utilizing an EPA-registered insect repellent comes highly recommended as well.

In the period between 2020-2023, human affliction by the West Nile virus was remarkably rare, with only two incidents reported last year. However, the year 2019 witnessed a surge in human cases, with a troubling total of 43.

Adding to the grim news, two mosquito pools, containing 46 specimens from two distinct zip codes, tested positive for the virus that causes St. Louis encephalitis. This marks the first incidence of the virus in Clark County mosquitos since the year 2019.

Fortunately, no human cases of St. Louis encephalitis have been reported since 2016.

The SNHD, in light of the escalating crisis, encourages everyone, whether they be residents or visitors in Las Vegas to report any mosquito activity to the contact number (702) 759-1633. As the town braces for the invisible threat, one can only hope that this unusual buzzing fades as quickly as it arrived.