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Gastrointestinal Illness Associated with Rancid Tortilla Chips at a Correctional Facility - Wyoming, 2015.

Abstract On October 12, 2015, a county health department notified the Wyoming Department of Health of an outbreak of gastrointestinal illness among residents and staff members at a local correctional facility. The majority of ill persons reported onset of symptoms within 1-3 hours after eating lunch served at the facility cafeteria at noon on October 11. Residents and staff members reported that tortilla chips served at the lunch tasted and smelled like chemicals. The Wyoming Department of Health and county health department personnel conducted case-control studies to identify the outbreak source. Consuming lunch at the facility on October 11 was highly associated with illness; multivariate logistic regression analysis found that tortilla chips were the only food item associated with illness. Hexanal and peroxide, markers for rancidity, were detected in tortilla chips and composite food samples from the lunch. No infectious agent was detected in human stool specimens or food samples. Extensive testing of lunch items did not identify any unusual chemical. Epidemiologic and laboratory evidence implicated rancid tortilla chips as the most likely source of illness. This outbreak serves as a reminder to consider alternative food testing methods during outbreaks of unusual gastrointestinal illness when typical foodborne pathogens are not identified. For interpretation of alternative food testing results, samples of each type of food not suspected to be contaminated are needed to serve as controls.
PMID
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Authors

Mayor MeshTerms
Keywords
Journal Title mmwr. morbidity and mortality weekly report
Publication Year Start




PMID- 27787491
OWN - NLM
STAT- In-Data-Review
DA  - 20161027
LR  - 20161028
IS  - 1545-861X (Electronic)
IS  - 0149-2195 (Linking)
VI  - 65
IP  - 42
DP  - 2016 Oct 28
TI  - Gastrointestinal Illness Associated with Rancid Tortilla Chips at a Correctional 
      Facility - Wyoming, 2015.
PG  - 1170-1173
LID - 10.15585/mmwr.mm6542a4 [doi]
AB  - On October 12, 2015, a county health department notified the Wyoming Department
      of Health of an outbreak of gastrointestinal illness among residents and staff
      members at a local correctional facility. The majority of ill persons reported
      onset of symptoms within 1-3 hours after eating lunch served at the facility
      cafeteria at noon on October 11. Residents and staff members reported that
      tortilla chips served at the lunch tasted and smelled like chemicals. The Wyoming
      Department of Health and county health department personnel conducted
      case-control studies to identify the outbreak source. Consuming lunch at the
      facility on October 11 was highly associated with illness; multivariate logistic 
      regression analysis found that tortilla chips were the only food item associated 
      with illness. Hexanal and peroxide, markers for rancidity, were detected in
      tortilla chips and composite food samples from the lunch. No infectious agent was
      detected in human stool specimens or food samples. Extensive testing of lunch
      items did not identify any unusual chemical. Epidemiologic and laboratory
      evidence implicated rancid tortilla chips as the most likely source of illness.
      This outbreak serves as a reminder to consider alternative food testing methods
      during outbreaks of unusual gastrointestinal illness when typical foodborne
      pathogens are not identified. For interpretation of alternative food testing
      results, samples of each type of food not suspected to be contaminated are needed
      to serve as controls.
FAU - Lupcho, Tiffany
AU  - Lupcho T
FAU - Harrist, Alexia
AU  - Harrist A
FAU - Van Houten, Clay
AU  - Van Houten C
LA  - ENG
PT  - Journal Article
DEP - 20161028
PL  - United States
TA  - MMWR Morb Mortal Wkly Rep
JT  - MMWR. Morbidity and mortality weekly report
JID - 7802429
EDAT- 2016/10/28 06:00
MHDA- 2016/10/28 06:00
CRDT- 2016/10/28 06:00
AID - 10.15585/mmwr.mm6542a4 [doi]
PST - epublish
SO  - MMWR Morb Mortal Wkly Rep. 2016 Oct 28;65(42):1170-1173. doi:
      10.15585/mmwr.mm6542a4.

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