Prior to agriculture and the domestication of animals humans likely had little chance to interact on a large scale with a wide range of pathogens, with disease likely playing a minor role in ...

Germ theory is the idea that pathogens can invade the human body and cause disease — and it wasn't always accepted. Evidence for germ theory accumulated over time, and as it did, it butted against ...

In the hearing on Wednesday, Sanders called attention to Kennedy’s denial of germ theory while raising one of Kennedy’s shaky arguments for debunking. In opening statements, Sanders warned Kennedy ...