Principles and practice of public health surveillance [electronic resource]. Lee, Lisa M. Public health surveillance. RA652.2.P82 614.4 22 Includes bibliographical references and index. Description based on online resource; title from home page (viewed Sept. 9, 2010). Public health surveillance is the systematic, ongoing assessment of the health of a community, based on the collection interpretation & use of health data. Surveillance provides information necessary for public health decision making & interventions. New York ; Oxford : Oxford University Press, 2010. 2010. 2010 Text 1 online resource. http://dx.doi.org/10.1093/acprof:oso/9780195372922.001.0001 eng