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    Study Shows Salmonella Is the Most Commonly Reported Food-borne Illness in U.S.

    Dec. 15, 2010 -- The first government estimates of food-borne illnesses in a decade find that one in six Americans gets sick, 128,000 people are hospitalized, and 3,000 people die each year after eating tainted food.

    “These illnesses are associated with billions in health care costs and also have a substantial human cost in severe illnesses and in some cases, long-term health effects that linger after the initial illness subsides,” says Christopher Braden, MD, acting director of the CDC’s Division of Foodborne, Waterborne and Environmental Diseases. “We need to do more to lower the impact of these diseases in the United States.”

    Previous estimates, released in 1999, showed that 76 million, or one in four Americans, got sick each year, 325,000 people were hospitalized, and 5,000 people died because of food poisoning.

    Food Supply Safety

    Experts caution, however, that the new numbers, which were released by the CDC on Wednesday, probably reflect the availability of more and better information about the problem and are not necessarily an indication that the food supply has become safer.

    “Just because we have more precise data that allows us a better estimate, that doesn’t mean that food-borne illnesses have gone down that much,” says Kirk E. Smith, DVM, PhD, supervisor of the Foodborne Disease Unit of the Minnesota Department of Health, which has been one of the most aggressive in identifying outbreaks of food-borne illnesses in the U.S.

    Smith says that clear inroads have been made against certain pathogens.

    E. coli 0157 has gone down quite a bit, presumably because of a lot of the work that industry and regulators are doing in beef processing plants. Listeria has gone down -- probably the same story there,” he says.

    But experts also lamented that almost no progress had been made against salmonella, the most commonly diagnosed and reported food-borne illness, according to preliminary data from the CDC’s 2010 FoodNet surveillance report.

    Salmonella accounted for 28% of deaths and about 35% of hospitalizations caused by known pathogens.

    “While rates of campylobacter, E. coli, and listeria have notably declined, salmonella has not,” says Craig W. Hedberg, PhD, a professor of environmental health sciences in the University of Minnesota School of Public Health. “The biology of salmonella is complex, and there are many sources and transmission routes that we don’t understand well. I think that understanding and preventing salmonella should be the major focus of food safety activities for the next few years.”

    Salmonella bacteria were responsible for a massive recall of eggs in 2010 and of peanut butter in 2009 -- outbreaks that sickened hundreds of people.

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