Germs are found all over the world, in all kinds of places. The four major types of germs are: bacteria, viruses, fungi, and protozoa. ... But not all bacteria are bad. Some bacteria are good for our bodies — they help keep things in balance.
In modern times, the term “germ” isn't widely used in formal science. Instead, disease-causing objects are referred to by what type they are. Viruses and bacteria are types of germs, as are certain types of fungi, protists, and prions.Feb 28, 2014
Five common ways germs are spread: Nose, mouth, or eyes to hands to others: Germs can spread to the hands by sneezing, coughing, or rubbing the eyes and then can be transferred to other family members or friends. Simply washing your hands can help prevent such illnesses as the common cold or eye infections.