RELATIONSHIP BETWEEN PARASITES AND HOST

A parasite is a living organism which takes nourishment and other needs from a host.

A host is an organism which support the parasites.

KINDS OF PARASITES

Ectoparasites: a parasite organism that lives on the outer surface of it’s host.

Endoparasites: a parasite that lives inside a host.

Obligate Parasites:  a parasite that completely depends on a host during a segment or all of it’s life cycle.

Facultative Parasites: an organism that exhibits parasitic and non-parasitic modes of life or a parasite that does not depend solely on a host to live.

Accidental Parasite: when a parasite attacks an unnatural host and survives.

Erratic Parasites: is a parasite that wanders into an organ in which it is not usually found.

KINDS OF HOST

Definitive Host: a host that harbors a parasite in the adult stage or a host in which a parasite undergoes sexual reproduction

Intermediate Host: a host that harbors the larval stage of the parasite

Paratenic Host: is a host that serves as a temporal refuge before reaching an obligate host.

Reservoir Host: a host hat makes the parasite available for the transmission to another host and is usually not affected by the infection.

Natural Host: a host that is naturally affected with certain species of parasites.

Accidental Host: a host that is under normal circumstances not infected with the parasite.