Chapter 14 Guide Flashcards
0
Q
Study of disease
A
Pathology
1
Q
Study of where and when diseases occur
A
Epidemiology
2
Q
Study of cause of disease
A
Etiology
3
Q
Relationship between 2 organisms where 1 always benefits
A
Symbiosis
4
Q
Relationship where 1 organism benefits and other unaffected
A
Commensalism
5
Q
Relationship where 1 organism benefits and other harmed
A
Parasitism
6
Q
Relationship where both organisms benefit
A
Mutualism
7
Q
Competition among microbes
A
Microbial antagonism
8
Q
Ways normal microbiota protect the host
A
Occupying space
Produce acids
Produce bacteriocins
9
Q
Major significance of Koch postulates
A
Microbes cause disease
10
Q
Koch’s postulates
A
- Same pathogen must be present in every case of disease.
- Pathogen must be isolated from diseased host & grown in pure culture.
- Pathogen from pure culture must cause disease when inoculated into healthy, susceptible lab animal.
- Pathogen must be isolated from inoculated animal & must be shown to be original organism.
11
Q
Exceptions to Koch’s postulates
A
- If organism cannot be grown in lab on artificial media.
- Disease caused by more than 1 organism.
- Disease only occurs in humans.
- Organism causes more than 1 disease.
12
Q
Does not show evidence of being present or incubating at time of admission
A
Nosocomial infections
13
Q
Hospital acquired infections
A
HAIs
14
Q
Most common HAIs
A
UTIs
