United States: In the latest update by health officials, more mosquitoes and those in and around Las Vegas seem to be carriers of the West Nile virus than ever before, and health authorities are advising the public to take measures to avoid being bitten. 

More about the news 

West Nile fever resembles flu with fever, headaches, vomiting, and diarrhea, and the fatality rate is around one in every 150. As it is, there are no known immunizations, treatments, or preventive measures for the disease transmitted by mosquitoes. 

In the past few weeks, 169 of over 24,000 pools of mosquitoes tested for West Nile virus, where at least one in each of these pools with a positive result — were found in 25 postal codes in southern Nevada, as NBC News reported. 

Record West Nile Virus Carriers Prompt Health Warning in US State. Credit | Shutterstock
Record West Nile Virus Carriers Prompt Health Warning in US State. Credit | Shutterstock

This year, pegged as an above-normal transmission season, was one for the record books in terms of the recorded mosquito density and positive pools, compared to previous years, including 2019, despite the fact that the counts were made early in the season. 

What more have the experts stated? 

According to Vivek Raman, an environmental health supervisor for the Southern Nevada Health District, “These are huge numbers of mosquitoes, and we’ve already identified a concerning number of them carrying the West Nile virus,” as NBC News reported. 

Additionally, health personnel have also found six pools in the Las Vegas region, where positive tests found infected from the St. Louis encephalitis virus, a mosquito-borne disease that can cause fatal inflammation of the brain. 

Climate change’s impact on human health 

There have been warnings delivered by the climate scientists and public health experts since decided to sound alarms about climate change and the subsequent expansion of various infection ranges both in terms of space and time. 

Therefore, Las Vegas is facing an explosion in mosquito population, along with a rise in West Nile prevalence locally which showcase a major case to study that how climate could impact the health of humans. 

On a global scale, average temperatures and precipitation increments in levels have led to conditions that turn out to be suitable breeding grounds for mosquito growth, which require still, warm water to lay eggs. 

According to Nischay Mishra, an assistant professor of epidemiology at Columbia University, southern Nevada has been facing rise in temperature, creating an optimal ground for mosquito breding. 

Mishra said, “Mosquitoes typically thrive in wet and hot places,” and, “But in Nevada, as smaller bodies of water dry up, they create shallow waters that are ideal for mosquito breeding,” as NBC News reported. 


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