Parasites need a host to survive and spread. There are three main types, and their symptoms vary. Stay away from others if you have a parasite to prevent the spread.

A fish parasite, the isopod Cymothoa exigua, replacing the tongue of a Lithognathus Parasitism is a close relationship between species, where one organism, the parasite, lives (at least some of the …

Parasitic Diseases A–Z Index: More information about specific parasites. A parasite is an organism (a living thing) that lives on or inside another organism. Information for health professionals, women, …

Sep 3, 2025 · There are various types and subtypes of parasites. The three main classes of parasites are protozoa, helminths, and ectoparasites, which can cause disease. If you contract a parasite, you …

Feb 4, 2025 · Dr. Khodadadian of Manhattan Gastroenterology explains the 10 signs that you may have a parasite and how to get treatment.

Nov 24, 2025 · Parasites live in other host organisms and depend on them for survival. Parasites can spread diseases and cause parasitic infections. The symptoms of a parasite infection in humans can …

Aug 18, 2025 · We asked experts how parasites are transmitted, what it feels like to be infected, and what you can do to protect yourself.