References. 1  Shmerling RH. 2  LeBlond RF, et al., eds. 3  Muscle cramps. 4  Sprains, strains and other soft tissue injuries.
Microorganisms can be, according to their characteristics, divided into several groups: 1  bacteria, viruses, certain fungi and parasites. 2  pathogenic (capable of causing disease), non-pathogenic, and opportunistic (causing disease when they have an opportunity, like in people with low immune system).xamples of bacteria pathogenic for a human are: 1  Staphylococcus aureus, causing skin infections, pneumonia, infection of the heart valves, etc. 2  Streptococcus pyogenes, causing âstrep throatâ, cellulitis, etc. 3  Neisseria gonorrheae, causing gonorrhea.
THE TRUE PATHOGENIC FUNGUS INFECTIONS. In true pathogenic fungus infections, the fungus is virulent regardless of the constitutional adequacy of the host. True pathogenic fungi include Histoplasma, Coccidioides, Blastomyces, and Paracoccidiodies. Pathogenicity is an accidental phenomenon and is not essential to the survival or dissemination of the species involved. Most infections are either completely asympotmatic or of very short duration and quickly resolved.