How to Pronounce "pathogen"
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Definition
A pathogen is any microorganism, like bacteria, viruses, or fungi, that can cause disease in humans, animals, or plants.
Listen in Context
Washing your hands removes many pathogens.
Scientists are developing new ways to destroy drug-resistant pathogens.
After the outbreak, health officials traced the pathogen to contaminated water.
A pathogen can cause infections in people.