AdvertisementBacteria In Worms Make A Mosquito Repellent That Might Beat DEETJanuary 16, 2019Jonathan LambertfacebookEmailAn 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)