We’re joined by mosquito and disease expert Dr. Louisa Messenger of the Las Vegas PARAVEC lab. It turns out that gators and snakes aren’t the big danger in a swamp. And this monster isn’t constrained to swamps. In fact, it’s probably in your own backyard.

The Southern Nevada Health District has confirmed the season’s first cases of West Nile virus, underscoring an urgent public health alert. According to a press release from the agency, a man in his 60s contracted the non-neuroinvasive form of the virus, while a man in his 70s faced the more severe neuroinvasive type, which causes inflammation of the brain (encephalitis), or inflammation of the membranes surrounding the brain and spinal cord (meningitis).

Summer is the season for the reemergence of bugs — not just the American cicada — but all types of indoor and outdoor bugs. You’ll spot silverfish, carpenter ants, ticks and spiders. With so many insects, you may be wondering where bugs go in the winter.

Two cases of West Nile virus have been found in people, according to the Southern Nevada Health District. SNHD reported the first case of West Nile virus in mosquitoes just over a month ago. Today they announced two men have contracted the illness and are in recovery.

UNLV professor and mosquito disease expert Louisa Messenger tells Joe Moeller why Southern Nevada has seen a "massive uptick" in our mosquito population in recent years.

If you are planning a trip to the ninth island in the coming months, make sure to wear insect repellent. Health officials warn of a record number of mosquitoes carrying West Nile Virus around Las Vegas.