Infection

Infection

The entry and development or multiplication of an infectious a biological agent (including virus, bacterium, protist, and helminth) in a host. Infection may or may not lead to disease symptoms (e.g. diarrhoea). Infection can be measured by detecting infectious agents in excreta of colonized areas or through measurement of a host immune response (i.e. the presence of antibodies against the infectious agant agent).

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