Stagnant water, dark enclosures, carbon dioxide — different things attract different mosquitoes. From April to October each year, Vivek Raman, an environmental health supervisor with the Southern Nevada Health District, and his team sets hundreds of mosquito traps across Clark County to keep tabs on these pesky — sometimes even deadly — insects.
Last year, his team of five environmental health workers collected more than 26,000 mosquitoes. The mosquitoes are sorted and sent to the Nevada Department of Agriculture, which tests the insects for West Nile Virus, St. Louis Encephalitis and Western Equine Encephalitis. “Now Zika is on the radar, but it is one of many mosquito-borne diseases that we try to keep our eye on,” Raman said.