The fact of having large numbers of parasites, or an invasion of the body by parasites.
Presence, and usually the growth and increase, of parasites or other organisms on the skin (e.g., ringworm infestation) or within the body, usually producing signs of disease (compare infection).
The presence of an organism, such as a parasite, living in or on a host body. An infestation with lice is an example of a parasite that lives on the outside of the body, while tapeworms are parasitic organisms that live inside the body in the intestines. Superficial infestations usually do not cause serious symptoms unless they transmit infections; some ticks can transmit Lyme disease and other infections, and certain mosquitoes carry the organisms that cause malaria. Infestations that occur inside the body may cause mild symptoms that are not detected unless the organisms infest vital organs or multiply, in which case they can cause serious complications.
The presence of animal parasites either on the skin (for example ticks) or inside the body (for example tapeworms).
An invasion of the body by animal parasites, especially macroscopic forms such as worms, larvae, or nymphal forms of endoparasites or ectoparasites.
A state in which a parasite grows and reproduces on the external surface of its host rather than within the host’s body is known as an ectoparasitic infestation.
Infestation with animal parasites, such as mites, ticks, or lice on the skin or hair, or the presence of worms, such as tapeworms, inside the body.