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  1. 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 or agent that can produce disease. A pathogen may …

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

    Jun 17, 2025 · What Is a Pathogen? Coughing and sneezing, bug or animal bites, contaminated food or objects and close contact can all transmit pathogens. Pathogens are microorganisms that can make …

  3. 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.

  4. 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.

  5. 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.

  6. Q&A: What are pathogens, and what have they done to and for us?

    What is a pathogen? A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and …

  7. 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, …

  8. Pathogens: Types and How to Defend Against Them

    Oct 21, 2025 · There are different types of pathogens found all over the world. Depending on the type of germ and your body, you can get a minor illness or a deadly disease when a pathogen enters. 1 This …

  9. PATHOGEN Definition & Meaning - Merriam-Webster

    Medical Definition pathogen noun patho· gen ˈpath-ə-jən : a specific causative agent (as a bacterium or virus) of disease

  10. Pathogens: What They Are, Types, and How to Stop Them

    Aug 5, 2025 · Pathogens come in several categories, each with distinct characteristics and mechanisms for causing disease. These include bacteria, viruses, fungi, and parasites. Bacteria are single-celled …