Microbiology Quiz 6 Flashcards
1
Q
Pathogenicity
A
The ability for a microbe to cause a disease
2
Q
Virulence
A
The severity of pathogenicity
3
Q
Direct contact transmission
A
-Diseases like Ebola, STIs, CDiff, MRSA
-Mainly due to contact with bodily fluids
4
Q
Indirect contact
A
-can be found on surfaces
-cold, flu, pinkeye, hand-foot and mouth
5
Q
Droplet contact
A
- enveloped viruses
- need a moist environment
- RSV, diphtheria
6
Q
Airborne contact
A
- Chickenpox
- small and can tolerate oxygen or will form spores
7
Q
Fecal-oral Contact
A
- Naked viruses (extreme environments)
- Facultative anaerobe
- E.coli cholera, Norovirus
8
Q
Reservoir (Zoonotic disease)
A
Animal that a bacteria or virus can be found in but does not cause illness to this animal
9
Q
Vector (Zoonotic disease)
A
Intermediate species that spread from the reservoir to humans (mosquitoes, fleas, ticks, etc.)
10
Q
Nosocomial/HAI
A
- Contaminated hospital environment to an invasive device to Medical personnel to patient flora
11
Q
Microbial Pathogenesis
A
- Exposure
- Adherence
- Invasion
- Multiplication
- Can’t stick, can’t get sick!
12
Q
Microbial Adherence
A
- Adhesions are found on the pathogen surface that allows it to bind to a host cell
- molecular grappling hooks
- They are somewhat specific
- need a capsule
13
Q
Invasion
A
- colonization is the growth of microorganisms after they’ve gained access to host tissues (Starts at birth)
14
Q
Virulence factors
A
- (Enzymes) Invasiveness requires a pathogen breakdown of host tissues
- Hyaluronidase breaks down host tissue
- Coagulase and streptokinase manipulate clotting
15
Q
Exotoxins
A
- proteins secreted by bacteria
- AB Toxins
- Superantigen toxins
- Cytolytic toxin
16
Q
A
