Support WBURBacteria In Worms Make A Mosquito Repellent That Might Beat DEETJonathan LambertJanuary 16, 2019 ShareAn image, from a scanning electron micrograph, of Heterorhabditis megidis nematode worms (colored blue). These parasitic worms harbor a bacteria that repels mosquitoes. (Steve Gschmeissner/Science Source)