Diagnostic Microbiology + Epidemiology (MIC 10)
19 important questions on Diagnostic Microbiology + Epidemiology (MIC 10)
What are different laboratory identifications from clinical specimens?
- Immunological assays
- Growth-dependent microbiology
- Molecular assays
- Antigen assays
How should specimens be obtained and handled?
- Specimen should be obtained from site of infection
- Sample must be taken aseptically
- Sample size must be large enough
- Metabolic requirements for the organism must be maintained during sampling, storage, and transport
How can urine be cultured?
- General purpose media
- Selective media
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What are the normal conditions of urine?
What are antimicrobial drug susceptibility tests?
- Disk diffusion test: antibiotic filters
- Broth dilution method
- Etest: determines the MIC
What is the in vivo importance of antibiotic drugs?
Can the drug reach the site of infection? If so, in sufficient concentrations to kill the microorganism?
What can be done when a pathogen is growing too slow?
What are chronic infections?
What is an acute infection?
What happened in 1918 that had a high mortality?
What happened after 1980 that increased the mortality?
When is a disease epidemic?
A disease is an epidemic when it occurs in an unusually large number of people in a population at the same time.
What is an endemic disease?
What is a disease outbreak?
A disease outbreak occurs when a number of cases of a disease are reported in a short period of time
What is meant with subclinical infections?
What are the stages of disease progression?
- Infection
- Incubation period
- Acute period
- Decline period
- Convascelent period
What is direct host-to-host transmission?
What is indirect host-to-host transmission?
Occurs when transmission is facilitated by a living or non-living vehicle.
Which factors influence R0? And in what way?
Epidemiological measures decrease the R0.
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