In this article we will discuss about the classification of parasites.
They are the ones who live on the surface of the body of the host.
Head louse (Pediculus humanus capitis), blood sucking fleas, flies, lice, mites etc.
They are the ones who live in the interior of the body of the host in the blood, tissues, body cavities, digestive tract and other organs.
Entamoeba, Trypanosoma, Plasmodium, Leishmania, Fasciola etc.
iii. Permanent parasite:
Leads a parasitic condition throughout the whole period of its life. Head louse cannot live away from the body of the host.
iv. Temporary parasite:
Visit its host for a short period.
v. Facultative parasite:
Lives a parasitic life when opportunity arises i.e., organisms which can live either a parasitic or non-parasitic existence. Example: Larvae of a saprophagous fly (Sarcophaga macroauriculata) are on record to have caused digestive disorder in man and also in a leopard after an apparent accidental ingestion along with meat.
vi. Obligatory parasite:
Cannot exist without a parasitic life i.e., they are obliged to live a parasitic existence and are incapable of surviving outside the host’s environment.
The head-louse have no alternative but to remain on the host.
vii. Occasional parasite:
Attacks an unusual host.
Mosquito behaves as a parasite only temporarily and moves away after taking a full blood meal.
viii. Aberrant or Wandering parasite:
Happens to reach a place where it cannot live.