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  1. Pathogen: Types, Causes, Effects on Body & Control

    Jun 17, 2025 · Pathogens are microorganisms that can make you sick. A microorganism is something that’s so small, you need a microscope to see it. Pathogens can cause illnesses like common colds, …

  2. Pathogen - Wikipedia

    In biology, a pathogen (Greek: πάθος, pathos "suffering", "passion" and -γενής, -genēs "producer of"), in the oldest and broadest sense, is any organism, agent or micro-organism that can produce disease. …

  3. All About Pathogens: Bacteria, Viruses, and More - WebMD

    Apr 26, 2025 · A pathogen is a living thing that causes disease. Viruses and bacteria can be pathogens, but there are also other types of pathogens.

  4. What is a Pathogen? 4 Types and How They Spread Disease

    Apr 3, 2019 · A pathogen is any organism that causes disease. Viruses, bacteria, fungi, and parasites are all examples of pathogens. Your body is naturally full of microbes.

  5. Pathogens: Definition, types, diseases, prevention, and more

    Aug 21, 2020 · A pathogen brings disease to its host. Another name for a pathogen is an infectious agent, as they cause infections. As with any organism, pathogens prioritize survival and reproduction.

  6. Pathogens: Types and How to Defend Against Them

    Oct 21, 2025 · Pathogens are tiny organisms that cause diseases and include bacteria, viruses, fungi, and parasites. To protect yourself, practice good hygiene like handwashing and avoid touching your …

  7. PATHOGEN Definition & Meaning - Merriam-Webster

    The meaning of PATHOGEN is a specific causative agent (such as a bacterium or virus) of disease. How to use pathogen in a sentence.

  8. What Is a Pathogen? Understanding Infectious Microbes

    Aug 4, 2025 · A pathogen is any microbe that causes disease in its host. It is not always a black-and-white distinction; some microbes can be harmless in one context and pathogenic in another, …

  9. Pathogen Definition and Examples - Biology Online Dictionary

    Apr 26, 2023 · A pathogen is an organism that invades and replicates in the body using tactics to avoid the host's immune system while also coevolving with it.

  10. What Are Pathogens? A Beginner's Overview of Infectious Agents

    Pathogens are a group of micro-organisms or parasites that can invade a host and cause disease, and derive their name from the Greek words 'pathos' and 'genesis'.