Infectious and Rare Diseases

21. Parasitic Diseases

A parasitic illness is an irresistible infection brought about or transmitted by a parasite. Numerous parasites don't bring about ailments. Parasitic ailments can influence basically all living beings, including plants and well evolved creatures. The investigation of parasitic illnesses is called parasitology. A few parasites like Toxoplasma gondii and Plasmodium spp. can bring about malady straightforwardly, yet different creatures can bring about infection by the poisons that they deliver. In spite of the fact that life forms, for example, microscopic organisms work as parasites, the utilization of the expression "parasitic sickness" is typically more limited. The three primary sorts of life forms creating these conditions are protozoa (bringing on protozoan disease), helminths (helminthiasis), and ectoparasites. Protozoa and helminths are generally endoparasites (normally living inside the body of the host), while ectoparasites typically live on the surface of the host. Once in a while the meaning of "parasitic ailment" is limited to infections because of endoparasites.