BiologicalStressors_2010_AdditionalSlides - Salmonella...

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Unformatted text preview: Salmonella enteritidis Outbreak in Salmonella enteritidis Poultry: SC Response The salmonella outbreak in the summer of 2010 in the US caused by contaminated eggs from Iowa farms brought to light a key difference with South Carolina producers For the past 12 yeas, South Carolina commercial egg producers have participated in voluntary salmonella control programs to prevent disease in laying hens. Part of this program includes testing egg farms for salmonella at Clemson Livestock Poultry Health Labs. More than 500 samples are tested each year. As a result of the voluntary effort, no South Carolina produced eggs were involved in the recent recall. “The U.S. Food and Drug Administration did not require these measures prior to July 9,” said Boyd Parr, state veterinarian and director of Livestock Poultry Health. “Our egg producers asked Clemson to help develop and monitor a program to ensure South Carolina laying hens and their eggs remain free of Salmonella enteritidis. MARSA in SC MARSA in SC 3 MARSA Outbreaks in SC Chesterfield, Darlington, and Florence Counties= 3 cases Recent Wall Street Journal Article reported 45% of the hogs and 49% of hog farmers in the mid west (Iowa and Illinois) were infected with MARSA (Nicholas D. Kristof, March 11, 2009 WSJ Op­Ed Column) Danish Hog Farmers were 760X more likely to have MARSA than the general population and 12% of the hogs were infected with MARSA (Resistance to Tetracycline) Found in surf zone sediments in Hawaii and the Great Lakes Chesapeake Bay Pathogen Survey High levels of Vibrios found in areas of the Chesapeake Bay with hypoxic conditions Food Infections: Norwalk Virus Food Infections: Symptoms: nausea, vomiting, diarrhea, and abdominal cramps (24­72 hours post exposure). Raw shellfish and other uncooked foods are high risk foods. 1982 Outbreak in New York: Between May1­Dec 31, 1982 there were 103 outbreaks involving 1017 cases of illness associated with the consumption of raw/steamed clams (80% of the cases) and oysters (20% of the cases). The overall attack rate was 56% in those consuming raw and steamed clams, 26% in those eating steamed clams to 3% in those not consuming clams. Cruise ship industry was hit hard in 2003 with Norwalk­like outbreaks most likely resulting from infected food handlers Feb.­ March, 2010, cruise ship MERCURY from Charleston has >1200 Norwalk illnesses on 3 cruises The State Ports Authority (SPA) in Charleston has signed agreements with cruise lines for 69 ships in 2010 up from 33 ships in 2009. The SPA has said they feel 104 ships are possible in the future, or two per week. Saluda Watershed Greenville S.C. Legend N Type II or III Phage Type I (only) Phage No F+RNA Phage NPDES Permit Sites Streams Watershed Greenwood 0 20 kilometers ...
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