Protozoan Parasites of Domestic Animals and Man

Parasites That Attack Animals and Man

SOME of the parasites that occur in animals also attack people. Some have to develop in an animal or in two different animals before they can invade human beings. Man then is the definitive, or final, host. He usually acquires the parasites by eating the intermediate animal hosts or (if they are small insects) by swallowing them accidentally. For some parasites, human beings are the intermediat...

Biology of Select Zoonotic Protozoan Infections of Domestic Animals

In this overview, the basic biology of select protozoan parasites of veterinary importance was covered. These include the Apicomplexans, Eimeria, Theileria, Cryptosporidium, and the Flagellates Giardia and African trypanosomes. Available information was synthesized into a relatively simple information guide of potential interest to a wide reading audience. Where appropriate, references are made...

Protozoan Parasites

When viewed from the top, Trichodina is circular; side views of the organism reveal a saucer or dome shape (Fig. 1). It has three rings of cilia (small, hair-like projections) encircling its body and oral cavity, which are used for locomotion and feeding. Its body is supported by a rigid ring of interconnected discs called a chitinoid or denticular ring (Fig. 2). Each disc has a thorn-like inne...

The Parasitic Worms of Man and the Domestic Animals

Foodborne protozoan parasites.

This report addresses Cryptosporidium, Giardia, Cyclospora, and more briefly, Toxoplasma as the main parasitic protozoa of concern to food production worldwide. Other parasitic protozoa may be spread in food or water but are not considered as great a risk to food manufacture. The protozoan parasites Cryptosporidium, Giardia, and Cyclospora have proven potential to cause waterborne and foodborne...