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Infectious Diseases I: Background Cheat Sheet (DRAFT) by

Background and such etc.

This is a draft cheat sheet. It is a work in progress and is not finished yet.


An infectious disease (ID) is caused by one or more pathogens [viruses, bacteria, fungi, protozoa, parasites and/or infectious proteins (prions)].
Infectious diseases are transm­itted through various mechan­isms, including physical contact with an infected individual or their body fluids, consuming contam­inated food or water or by touching contam­inated objects.
Some conditions are transm­itted by airborne inhalation and others are spread by a vector (carrier).
Transm­issible diseases that are spread person to person are referred to as commun­icable or contagious.
Three primary factors impact treatment decisions in infectious diseases: the bug (pathogen), the drug (antib­iotic) and the patient (host).