NURSING ANM AND GNM

Detailed explanation-1: -Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions. Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system.

Detailed explanation-2: -Pathogen: These are organisms that inhabit another organism (called the host) and cause a disease or disorder in the host. Pathogens may be unicellular or multicellular and belong to a variety of taxonomical categorizations like bacteria, fungi, protozoans, viruses, worms, etc.