MICR-3050 Study Guide - Quiz Guide: Drug Resistance, Plasmid, Gram-Positive Bacteria
8 Apr 2018
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Chapter 28. 9 28. 10, 28. 12: define vaccination, vaccine, and herd immunity. Inoculation of host w weakened or dead pathogen. The number of individuals that get infected is reduced as the number of individuals vaccinated increases. Normally the more contagious a pathogen is, the more vaccinated individuals there need to be in the population: know (in general) how vaccines stimulate active immunity. Vaccines stimulate active immunity by acting as an antigen (doesn"t cause disease) whch then causes the immune system to act against it (making memory t cells and what not). The initial response is slow but it becomes quicker as the individual becomes exposed more to it: explain how herd immunity may protect susceptible individuals from disease and understand its role in public health. The more individuals vaccinated means less individuals will be infected. Chemicals used to inhibit or kill pathogens (ex. Substances that are altered to target a broader range of pathogens.
