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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 …

  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 …

  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: Types and How to Defend Against Them

    Oct 21, 2025 · How many pathogens are there? There are about 1400 human pathogens that have been identified, but there are believed to be many more which have not yet been …

  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 …

  6. 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 …

  7. 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.

  8. 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.

  9. What Are Pathogenic Organisms and How Do They Cause Disease?

    Jul 20, 2025 · Pathogens spread from a source to a host through several distinct routes. Direct contact involves the physical transfer of microorganisms, such as when shaking hands. This is …

  10. Pathogen Definition and Examples - Biology Online Dictionary

    Apr 26, 2023 · A pathogen is a biological entity that possesses the ability to cause disease by invading and replicating within the host organism, utilizing various mechanisms to evade or …