What are germs?

Germs refer to microorganisms that encompass a broad spectrum of microscopic living beings, including bacteria, viruses, fungi, and protozoa. They are ubiquitous in nature and can exist on nearly every surface, from the air we breathe to the surfaces we touch. This definition aligns with the notion that germs are not limited to harmful pathogens but also include a wide variety of non-pathogenic microorganisms that play beneficial roles in various ecosystems.

While it is true that some germs are pathogenic and can cause infections, the term "germs" itself is more inclusive and is often used generically to refer to any and all microorganisms, regardless of their effects on human health. Therefore, the correct understanding of the term encompasses their presence on surfaces rather than limiting it to harmful effects or specific types of organisms that require sunlight or are complex enough to be visible to the naked eye.