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.

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 …

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 …

Oct 14, 2025 · It is estimated that 3 out of 5 Americans will be affected by parasites at some point in their lives. Learn about the various types of parasites, symptoms, and the sources of …

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.

Parasites cause various diseases and are transmitted to humans most often through the ingestion of contaminated food or water or through the bite of an arthropod.

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

Jul 2, 2025 · Parasites in humans may cause bloating, fatigue, or gut issues. Learn the symptoms, types, causes, tests, and natural ways to treat and prevent infection.

Nov 17, 2025 · Which Parasites Can Affect Humans? Three main types of parasites infect humans: protozoa, helminths, and ectoparasites. Each has a unique way of spreading, …

Nov 13, 2023 · Parasites live in other host organisms and depend on them for survival. Parasites that can affect humans include ticks, lice, and hookworms. Symptoms of a parasite infection in …