src: Burgdorfer, who died in 2014, worked as a biological weapons researcher for the U.S. Army and said he was tasked with raising fleas, ticks, mosquitoes and other blood-sucking insects and infecting them with pathogens that cause human disease..
tgt: Burgdorfer, que morreu em 2014, trabalhou como pesquisador de armas biológicas para os militares dos EUA e disse que foi encarregado de criar pulgas, carrapatos, mosquitos e outros insetos sugadores de sangue e infectá-los com patógenos que causam doenças humanas.