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GNUR 203 Module 1 Quiz
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GNUR 203 Module 1 Quiz
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GNUR 203 Module 1 Quizdescribe the differences between a communicable disease and non-communicable
disease - ANS-communicable can be obtained from environment (flu, covid, measles)
and non-communicable are due to internal changes (cancer, diabetes)
define pathogen - ANS-A microorganism that causes disease
explain how etiology is used to determine if a disease is caused by a pathogen -
ANS-etiology is the study of infectious disease, therefore it's literally looking for
pathogens
name the different relationships between organisms - ANS-mutualism: both benefit
parasitism: one benefits, one is harmed
commensalism: one benefits, one unaffected
what change in organisms relationship can lead to an opportunistic infection -
ANS-mutualism --> parasitism
what is a microbiome? how is it acquired and how does it improve health by preventing
disease? - ANS-all the microorganisms that stay in/on the body without causing
disease; starts in womb and right after birth with any exposures, strengthens immune
system & prevents pathogen entry to body
what are the differences between contamination, infection and disease - ANS-C-
pathogen on object that's an unfavorable environment, short term usually
I- if turns long term then pathogen grows and replicates in this more favorable
environment
D- pathogen causes damage, can see s/s now
define ID50 - ANS-represents the number of pathogen needed to infect 50% of exposed
hosts
high = less infectous, need more pathogen
low = more infectous, need less pathogen
steps included in chain of infection (with examples) - ANS-portals of entry (MM)
susceptible host (immunocompromised)
infectious agent (virus)
reservoir (human)
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