Harmful microorganisms that cause diseases are called?

The correct answer, “Pathogens,” refers specifically to harmful microorganisms that can cause diseases in humans. Pathogens include a variety of organisms like bacteria, viruses, fungi, and parasites that can lead to infections and foodborne illnesses.

Understanding this term is crucial because it encompasses all categories of disease-causing microorganisms, not just one type. For example, while viruses are indeed pathogens, they represent only a subset of this wider group.

Allergens, on the other hand, are substances that can cause allergic reactions but are not necessarily harmful microorganisms. Toxins are poisons produced by some microorganisms, which can lead to illness but are distinct from the organisms themselves. Thus, “Pathogens” is the most encompassing and accurate term in this context.