Some microbes are harmful and cause one or more diseases in other living beings. These organisms that cause diseases are called pathogens. It includes bacteria, fungi, worms and protozoans. However, some non-living entities that cause disease are also referred to as pathogens. For instance, infectious protein prions cause many neurodegenerative diseases. So, prions are also pathogens. Likewise, viruses cause many diseases in plants and animals. Viruses do not exhibit life processes when they are outside the host cells. However, viruses are also called pathogens.
I believe they will disappear from the area because they’ll either die from the disease in there food or migrate somewhere else for a different source of food