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TN Spinach Outbreak 2006 “To Eat or Not to Eat?”. Swan Lin Baker, RN, BSN Metro Public Health Department Nashville Davidson County. Background. E. coli 0157: H7 is a leading cause of foodborne illness 1999 estimate- 73,000 cases with 61 deaths occur in the United States per year
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TN Spinach Outbreak 2006“To Eat or Not to Eat?” Swan Lin Baker, RN, BSN Metro Public Health Department Nashville Davidson County
Background • E. coli 0157: H7 is a leading cause of foodborne illness • 1999 estimate- 73,000 cases with 61 deaths occur in the United States per year • Hundreds of strains of e. coli
Background • E. coli is a gram negative bacteria • Only some strains of e. coli are pathogenic • E. coli 0157: H7 produces a powerful toxin • Only takes a small amount of this organism to cause illness
Background • Incubation period is generally 2-8 days with an average of 3-4 days after exposure • Symptoms include: severe bloody diarrhea and abdominal cramps • Most people recover in about 5-10 days, however, 5-10 % of people who are infected with e. coli can go on to develop a complication known as Hemolytic Uremic Syndrome (HUS)
MPHD hx with e. coli • September 2005 –PFGE match to isolate • Cases related to YMCA • Most cases resided in another region • 2 cases resided in Nashville
MPHD hx with e. coli • Conclusion: possible water system leakage at YMCA • No other known outbreaks in Davidson County recently
Outbreak Case • On Thursday, September 21st, the Metro Public Health Department (MPHD) received laboratory confirmation of an e. coli 0157:H7 from the hospital • Subsequently received notification from the Tennessee Department of Health that the stool specimen was a PFGE match to the national spinach outbreak
History of Illness • Initial contact with pt. • Patient’s initial sx began on Sept. 9th • September 10th-progression of illness • By Monday, September 11th- sx worsened
History of Illness cont. • On Tuesday, September 12th he called his doctor who advised him to come to the office to be seen
History of Illness cont. • He finally did proceed to the ER around 8 pm where he was examined, treated and released • Over the course of his illness he began to develop back pain which continued to worsen
History of Ilness cont. • He visited his PCP on Tuesday, September 18th due to back pain that continued to worsen. • Diagnosis • What the interview did/didn’t reveal
What we didn’t know… • When the spinach was purchased • What brand he consumed
Next Steps… • Contacted Kroger corporate office • Home visit • Kroger released receipts to patient • Patient sent receipts to TDH
In Conclusion… • From receipts gathered, pt. purchased the Dole baby spinach on 8/23/06. • Specimen was a confirmed PFGE match to the national outbreak pattern, thus making this the first case of this strain of e. coli 0157:H7 in Tennessee