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 …

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.

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 …

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 …

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 …

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

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 …

Pathogens are microorganisms that cause disease. They include bacteria, viruses, fungi, and parasites. Each type of pathogen affects the body differently and can lead to various illnesses. …

Dec 1, 2025 · A pathogen is a living thing or virus that causes disease. Pathogens are commonly called “germs.” They can travel from one person to another. Living things that cause human …

The chain of components has six sections. They include: