Las Vegas, known for its entertainment and luxury options, has become an unexpected breeding ground for disease-carrying mosquitoes. The Aedes aegypti mosquito, which spreads dengue fever, has established itself across the city’s 48 ZIP codes, putting tourists at risk.
Mosquito sightings began in 2017 but have now spread rapidly due to the warm desert climate and abundance of standing water around hotels. These mosquitoes are aggressive daytime biters that attack visitors during peak sightseeing hours.
Health experts warn that the situation is a ticking time bomb for disease transmission. The city’s lack of a centralized mosquito control program and fragmented approach to pest control have allowed populations to build unchecked, making it difficult for visitors to know which areas pose higher risks.
To prevent mosquito bites, tourists should pack insect repellent, avoid areas with standing water, and stay alert during daytime hours when these mosquitoes are most active. The hotel industry’s silence on the issue is concerning, but with proper awareness and precautions, the risk can be minimized.
The growing mosquito crisis in Las Vegas has implications beyond the city itself, serving as a preview of challenges other destinations may face due to climate change. As the city prepares for its 48 million annual visitors, residents and tourists alike must take steps to protect themselves from this emerging public health threat.
Source: https://rollingout.com/2025/08/17/what-las-vegas-hotels-dont-tell-guests