PBH Q3-ch.6 vocab in text

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passive immunity
- short term
- injections of antibodies
herd immunity***

70% ppl vaccinated so others wont be able to contract the disease
cost effectiveness***
- both benefit and harms
- last priority
net effectiveness***

benefits>harms
lead time bias

early detection w/o improved outcome
sequential testing

breast cancer needs two tests
genetic prevention***

prevent genes that will make disease
genetic detection bf disease***

detect defects to prevent phenotypic
sensitivity***
- test is 90% accurate in presence of disease
- true positives
specificity***
- test is 90% accurate in the absence of disease
- true negatives
positive predictive value***

postive result who correctly diagnosed
negative predictive value***

negative result who correctly diagnosed
epi treatment***

treat to control spread
ring vaccination3steps***
- identify case of smallpox
- vacinnation of close contact
- then mile radius case measure