infectious agent

Noun
  1. is a type of: agent - an active and efficient cause; capable of producing a certain effect
    subtypes:
    • virus - (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
    • pathogen - any disease-producing agent (especially a virus or bacterium or other microorganism)
    same as: infective agent

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