immunity: Nonsusceptibility

Nonsusceptibility

Nonsusceptibility is the inability of certain disease-carrying organisms to grow in a particular host species. Nonsusceptibility may be caused by such conditions as lack of availability of particular growth substances needed by the infecting microorganism or body temperature unsuitable for the invading microorganism. For example, chickens are nonsusceptible to anthrax because the bacteria cannot grow at the body temperature normal for that animal.

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