About 26,600 results
Open links in new tab
  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 can be free-living …

  3. Parasitism - Wikipedia

    Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as …

  4. Parasitic infections: Types, symptoms, 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 …

  5. Parasites: 3 Types, Skin Symptoms, Stool Testing - Verywell Health

    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 …

  6. What To Do If You Think You Might Have a Parasite

    Human parasites are real but treatable. Learn symptoms, how physicians diagnose infections and why parasite cleanses fall short.

  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.

  8. Parasitic Diseases - MedlinePlus

    Nov 18, 2025 · Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact.

  9. Parasites: Types, Symptoms, Treatment, Prevention - Health

    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, multiplying, and …

  10. Overview of Parasitic Infections - MSD Manuals

    Parasites are organisms that live on or inside another organism (the host) and depend on the host for nutrients and survival. Parasitic infections are more common in areas with limited access to clean …