infectious agent

Definitions of infectious agent

n an agent capable of producing infection

infective agent
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(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
any disease-producing agent (especially a virus or bacterium or other microorganism)
arborvirus, arbovirus
a large heterogeneous group of RNA viruses divisible into groups on the basis of the virions; they have been recovered from arthropods, bats, and rodents; most are borne by arthropods; they are linked by the epidemiologic concept of transmission between vertebrate hosts by arthropod vectors (mosquitoes, ticks, sandflies, midges, etc.) that feed on blood; they can cause mild fevers, hepatitis, hemorrhagic fever, and encephalitis
bacteriophage, phage
a virus that is parasitic (reproduces itself) in bacteria
plant virus
a plant pathogen that is a virus consisting of a single strand of RNA
animal virus
an animal pathogen that is a virus
slow virus
a virus that remains dormant in the body for a long time before symptoms appear
tumor virus
a cell-free filtrate held to be a virus responsible for a specific neoplasm
(genetics) a virus or other agent that is used to deliver DNA to a cell
Type of:
an active and efficient cause; capable of producing a certain effect

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