Infectious Agent

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Infectious diseases, also known as communicable diseases, are illnesses caused by pathogens such as bacteria, viruses, fungi, parasites, and other microorganisms. These pathogens can be transmitted from one person to another through various means, such as through the air, contaminated surfaces, bodily fluids, or insect bites.

Infectious diseases can range from mild to severe, and can affect different parts of the body, including respiratory, gastrointestinal, reproductive, neurological, and other systems.


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