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A pathogen is an infectious agent that causes illness to the host. These are commonly attributed to be bacteria and viruses.

They can also be simple organisms, such as Naegleria fowleri [the uncommon brain eating ameoba]. Most pathogens are infectious microbes, such as bacteria or viruses, which are capable of causing disease. Other parasites, such as fungi and protozoans, are also considered pathogens. Because not all microbes are harmful, pathogens refer specifically to those that can cause disease or other harm.
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All germs are pathogens but all pathogens is not germs.


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Bacteria and viruses that cause illness are known as pathogens.


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What types of scientist studies pathogens?

Microbiologists, immunologists, and epidemiologists are scientists who study pathogens. Microbiologists focus on the characteristics and behavior of pathogens, immunologists study the body's immune response to pathogens, and epidemiologists investigate how pathogens spread in populations.


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Pathogens cause Infectious Diseases by pathogens getting into your body and caused harm.


How is pathogens and non-pathogens alike?

Pathogens and non-pathogens are alike in that they can both exist in various environments and interact with organisms. However, pathogens have the ability to cause disease in their hosts, while non-pathogens do not typically cause harm.


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Pathogens are any disease carrying or causing microorganism. Pathogens include bacteria and viruses. Pathogens exist in every part of the world. There are no places free of pathogens.


What is absence of pathogens called?

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