NURSING ANM AND GNM

Detailed explanation-1: -Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms.

Detailed explanation-2: -Opportunistic Infections (OIs) are defined as infections occuring due to bacteria, fungi, viruses, or parasites that normally do not cause a disease, but become pathogenic when the body’s defense system is impaired [1]. OIs can also be represented by unusually severe infections caused by common pathogens [1].

Detailed explanation-3: -A primary pathogen can cause disease in a host regardless of the host’s resident microbiota or immune system. An opportunistic pathogen, by contrast, can only cause disease in situations that compromise the host’s defenses, such as the body’s protective barriers, immune system, or normal microbiota.