Giuseppe
Emeritus
National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case?control study (Euro Surveill., abstract, edited)
[Source: Eurosurveillance, full text: <cite cite="http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19840">Eurosurveillance - View Article</cite>. Abstract, edited.]
Eurosurveillance, Volume 16, Issue 15, 14 April 2011
Surveillance and outbreak reports
National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case?control study
K Janmohamed 1, D Zenner 1,2, C Little 1, C Lane 1, J Wain 1, A Charlett 1, B Adak 1, D Morgan 1
1. Health Protection Agency, Centre for Infections, London, United Kingdom
2. London School of Hygiene and Tropical Medicine, London, United Kingdom
Citation style for this article: Janmohamed K, Zenner D, Little C, Lane C, Wain J, Charlett A, Adak B, Morgan D. National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case?control study. Euro Surveill. 2011;16(15)
ii=19840. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19840
Date of submission: 16 June 2010
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 NxCpL) 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 food-borne 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 NxCpL. 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.
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[Source: Eurosurveillance, full text: <cite cite="http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19840">Eurosurveillance - View Article</cite>. Abstract, edited.]
Eurosurveillance, Volume 16, Issue 15, 14 April 2011
Surveillance and outbreak reports
National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case?control study
K Janmohamed 1, D Zenner 1,2, C Little 1, C Lane 1, J Wain 1, A Charlett 1, B Adak 1, D Morgan 1
1. Health Protection Agency, Centre for Infections, London, United Kingdom
2. London School of Hygiene and Tropical Medicine, London, United Kingdom
Citation style for this article: Janmohamed K, Zenner D, Little C, Lane C, Wain J, Charlett A, Adak B, Morgan D. National outbreak of Salmonella Enteritidis phage type 14b in England, September to December 2009: case?control study. Euro Surveill. 2011;16(15)
ii=19840. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=19840Date of submission: 16 June 2010
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 NxCpL) 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 food-borne 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 NxCpL. 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.
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