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FoodNet Studies and Surveys

Laboratory Survey


Physician Survey

Clinical laboratories have different practices for testing specimens, regarding both what pathogens are screened and which methods are used. Such differences may contribute to variation in the rate of pathogen isolation observed in surveillance.

  In 1996, FoodNet conducted a survey of 5,074 randomly selected physicians in the five FoodNet sites. Physicians were selected from state physician license lists for nonsurgical specialties.

Population Survey


Case-Control Studies

FoodNet has conducted four 12-month cycles of the Population Survey, a population-based survey, in 1996-1997, 1998-1999, 2000-2001, and 2002-2003. The purpose of the surveys is to more precisely estimate the burden of acute diarrheal illness in the United States, and the frequency of important exposures.
  As part of FoodNet, case-control and other epidemiologic studies are conducted to determine the proportion of foodborne diseases that are caused by specific foods or food preparation and handling practices. By determining this proportion, health officials can make prevention efforts more specific and document their effectiveness.
Page last modified: August 16, 2005
Content source: National Center for Zoonotic, Vector-Borne, and Enteric Diseases (ZVED)
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