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14 Cards in this Set
- Front
- Back
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transmitted from host to host -colds, flu, measles, diarrheas |
communicable disease |
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disease does not spread from one host to host -yeast infection in lung or rabies not communicable from human to human |
non-communicable |
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cases of illness in a given time period/population at risk -influenza has high _________ rate |
morbidity rate |
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Unusually large number of cases in a population -cholera or flu |
epidemic |
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epidemic spreads worldwide |
pandemic |
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most significant reservoir for communicable diseases -should be easier to control |
human reservoirs |
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transmission between source and susceptible host -person to person by physical touch -hands |
direct contact |
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transmission by fomites |
indirect contact |
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microbe laden respiratory droplets fall within 3 feet of release -not airborne -considered direct |
droplet transmission |
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small respiratory droplets connected to dry material -indirect |
nuclei droplet |
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unimmunized protected due to lack of reservoir -if 20 out of 21 people are immunized is it likely that that 1 person will get disease |
herd immunity |
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suggested by rapid rise in numbers -came from single source -every one gets sick over a short period of time |
common source epidemic |
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gradual rise epidemic -one person-->3 people--->those 3 spread to another 9 blah -slower spread and slower decline |
propagated epidemic |
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hospital acquired infections |
nosocomial infections |
