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National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case-control study.
Euro Surveill. 2011 Apr 14; 16(15)ES

Abstract

We conducted an unmatched retrospective case–control study to investigate an upsurge of non-travel-related sporadic cases of infection with Salmonella enterica subsp. enterica serotype Enteritidis phage type 14b with antimicrobial resistance to nalidixic acid and partial resistance to ciprofloxacin (S. Enteritidis PT 14b NxCp(L)) that was reported in England from 1 September to 31 December 2009. We analysed data from 63 cases and 108 controls to determine whether cases had the same sources of infection as those found through investigation of 16 concurrent local foodborne outbreaks in England and Wales. Multivariable logistic regression analysis adjusting for age and sex identified food consumption at restaurants serving Chinese or Thai cuisine (odds ratio (OR): 4.4; 95% CI: 1.3–14.8; p=0.02), egg consumed away from home (OR: 5.1; 95% CI: 1.3–21.2; p=0.02) and eating vegetarian foods away from home (OR: 14.6; 95% CI: 2.1–99; p=0.006) as significant risk factors for infection with S. Enteritidis PT 14b NxCp(L). These findings concurred with those from the investigation of the16 outbreaks, which identified the same Salmonella strain in eggs from a specified source outside the United Kingdom. The findings led to a prohibition of imports from this source, in order to control the outbreak.

Authors+Show Affiliations

Health Protection Agency, Centre for Infections, London, United Kingdom. Kulsum@doctors.org.ukNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

21507321

Citation

Janmohamed, K, et al. "National Outbreak of Salmonella Enteritidis Phage Type 14b in England, September to December 2009: Case-control Study." Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin, vol. 16, no. 15, 2011.
Janmohamed K, Zenner D, Little C, et al. National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case-control study. Euro Surveill. 2011;16(15).
Janmohamed, K., Zenner, D., Little, C., Lane, C., Wain, J., Charlett, A., Adak, B., & Morgan, D. (2011). National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case-control study. Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin, 16(15).
Janmohamed K, et al. National Outbreak of Salmonella Enteritidis Phage Type 14b in England, September to December 2009: Case-control Study. Euro Surveill. 2011 Apr 14;16(15) PubMed PMID: 21507321.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case-control study. AU - Janmohamed,K, AU - Zenner,D, AU - Little,C, AU - Lane,C, AU - Wain,J, AU - Charlett,A, AU - Adak,B, AU - Morgan,D, Y1 - 2011/04/14/ PY - 2011/4/22/entrez PY - 2011/4/22/pubmed PY - 2012/3/7/medline JF - Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin JO - Euro Surveill VL - 16 IS - 15 N2 - We conducted an unmatched retrospective case–control study to investigate an upsurge of non-travel-related sporadic cases of infection with Salmonella enterica subsp. enterica serotype Enteritidis phage type 14b with antimicrobial resistance to nalidixic acid and partial resistance to ciprofloxacin (S. Enteritidis PT 14b NxCp(L)) that was reported in England from 1 September to 31 December 2009. We analysed data from 63 cases and 108 controls to determine whether cases had the same sources of infection as those found through investigation of 16 concurrent local foodborne outbreaks in England and Wales. Multivariable logistic regression analysis adjusting for age and sex identified food consumption at restaurants serving Chinese or Thai cuisine (odds ratio (OR): 4.4; 95% CI: 1.3–14.8; p=0.02), egg consumed away from home (OR: 5.1; 95% CI: 1.3–21.2; p=0.02) and eating vegetarian foods away from home (OR: 14.6; 95% CI: 2.1–99; p=0.006) as significant risk factors for infection with S. Enteritidis PT 14b NxCp(L). These findings concurred with those from the investigation of the16 outbreaks, which identified the same Salmonella strain in eggs from a specified source outside the United Kingdom. The findings led to a prohibition of imports from this source, in order to control the outbreak. SN - 1560-7917 UR - https://www.unboundmedicine.com/medline/citation/21507321/National_outbreak_of_Salmonella_Enteritidis_phage_type_14b_in_England_September_to_December_2009:_case_control_study_ L2 - http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19840 DB - PRIME DP - Unbound Medicine ER -