: A VITAL INVESTMENT FOR THE CHANGING BURDENS OF DISEASE
May 28, 2012
Editorial Ebrahim S, 2011. Surveillance and monitoring: a vital investment for the changing burdens of disease International Journal of Epidemiology. 40: 1139-1143
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DEFINITION OF PUBLIC HEALTH SURVEILLANCE 'Public health surveillance is the continuous, systematic
collection, analysis and interpretation of health-related data needed for the planning, implementation, and evaluation of public health practice. Such surveillance can: (1) serve as an early warning system for impending public health emergencies; (2) document the impact of an intervention, or track progress towards specified goals;
(3) monitor and clarify the epidemiology of health problems, to allow priorities to be set and to inform public health policy and strategies.' http://www.who.int/topics/public_health_surveillance/en/
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PASSIVE SURVEILLANCE VS ACTIVE SURVEILLANCE Passive surveillance
(provider-initiated) health-care providers send reports to a health department on the basis of a known set of rules and regulations Active surveillance Monitoring (health department- initiated) health department staff contacts healthcare providers to solicit reports, usually limited to specific diseases over a limited period of time, such as after a community exposure or during an outbreak
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USDHHS, 2002. pp5-14
LOOP IN A SURVEILLANCE SYSTEM
USDHHS, 2002. pp290
FIG. 2 THE COMPONENTS OF SURVEILLANCE AND
RESULTING PUBLIC HEALTH ACTION
USDHHS, 2002. pp291
SOURCES OF DATA
USDHHS, 2002. pp297
FIG. 3 THE INFORMATION CYCLE
USDHHS, 2002. pp305
REFERENCES
US Department of Health and Human Services, 2002. Principles of epidemiology (2ed). US Department of Health and Human Services, 2006. Principles of epidemiology (3ed).