Overview: surveillance and sentinel systems.
Department of Public Health, State of Connecticut, USA.
J S
JS
Marr
D003140:Communicable Disease Control; D003141:Communicable Diseases / Q000453:epidemiology* / Q000635:transmission; D004196:Disease Outbreaks / Q000517:prevention & control; D006801:Humans; D007391:International Cooperation; D020407:Internet; D011159:Population Surveillance