Infectious Agent
- virus
(virology) ultramicroscopic infectious agent that replicates itself only within cells of living...
- pathogen
Any disease-producing agent (especially a virus or bacterium or other microorganism).
Also contains
- bacteria
(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms...
- vector
Any agent (person or animal or microorganism) that carries and transmits a disease; "mosquitos...
- moneran
Organisms that typically reproduce by asexual budding or fission and whose nutritional mode...
- protoctist
Any of the unicellular protists.
- virulence
Extreme harmfulness (as the capacity of a microorganism to cause disease); "the virulence...
- microflora
Microscopic plants; bacteria are often considered to be microflora.
- monad
(biology) a single-celled microorganism (especially a flagellate protozoan).
- pilus
Hairlike structure especially on the surface of a cell or microorganism.
- intestinal flora
Harmless microorganisms (as Escherichia coli) that inhabit the intestinal tract...
- microbe
A minute life form (especially a disease-causing bacterium); the term is not in technical...
- bacteremia
Transient presence of bacteria (or other microorganisms) in the blood.
- protist
Free-living or colonial organisms with diverse nutritional and reproductive modes.