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  1. Parasites: Types, Symptoms, Treatment & Prevention

    Apr 14, 2023 · 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.

  2. About Parasites | Parasites | CDC

    Nov 14, 2024 · There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites. Protozoa are microscopic, one-celled organisms that …

  3. Five deadly parasites to keep on your radar | Ohio State ...

    1 day ago · Here are five potentially deadly parasites you should keep on your radar. Malaria, an infectious disease from mosquitoes People become infected by malaria when bitten by an …

  4. You Might Be Hosting a Parasite Right Now. Here’s How to Tell

    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.

  5. Warning Signs of Parasites in Humans & How to Treat Them

    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.

  6. Parasites: 3 Types, Skin Symptoms, Stool Testing

    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 …

  7. Parasitic disease | Definition, Types, & Causes | Britannica

    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.