![]() Portal of entry: the means of a pathogen entering a host: the means of entry can be the same as one that is the portal of exit (gastrointestinal, respiratory, genitourinary tract).Susceptible host describes a host (human or animal) not possessing enough resistance against a particular pathogen to prevent disease or infection from occurring when exposed to the pathogen in humans this may occur if the person’s resistance is low because of poor nutrition, lack of exercise of a coexisting illness that weakens the host.Modes of transmission: the microorganism must have a means of transmission to get from one location to another, called direct and indirect.Infectious agent microorganisms capable of causing infections are referred to as an infectious agent or pathogen.Basic to the principle of infection is to interrupt this chain so that an infection from a microorganism does not occur in client. ![]()
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