MICR 2420 Lecture Notes - Lecture 17: Emerging Infectious Disease, Engineering Controls, Facultative Anaerobic Organism
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12 Apr 2016
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Purpose: prevent transmission of infecious agents to paients, staf, and visitors. 250000 paients/year in canada get hai"s (8000 of these die) Elements of an infecion prevenion and control program. Ongoing collecion and analysis of data (types of infecions and organisms) Acive: intenionally seeking out informaion (swabbing paients on admission to hospital) Passive: relying on others to provide data (any animicrobial resistant organisms detected by the microbiology lab printed to infecion control printer) Chain of transmission: how an agent gets from a reservoir (source) to a suscepible host. Portals of entry: mucous membrane, respiratory, gi tract, broken skin. Mrsa: nose, armpit, groin; vre: gi tract. Bacteria/virus breach host defenses to cause damage (ie. bloodstream infecions) Droplet transmission: infecious agents expelled from airway via respiratory droplets, can travel up to 2m. Airborne transmission (infecious agents expelled from airway loat on air currents for prolonged period of ime) Suscepible host: immunizaion, nutriion, recognizing high-risk paients, treatment.
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