Giuseppe
Emeritus
[Source: Eurosurveillance, full text: (LINK). Abstract, edited.]
Eurosurveillance, Volume 16, Issue 47, 24 November 2011
Surveillance and outbreak reports
National outbreak of Salmonella Java phage type 3b variant 9 infection using parallel case?control and case?case study designs, United Kingdom, July to October 2010
M Gobin (
)<SUP>1</SUP>, N Launders<SUP>2</SUP>, C Lane<SUP>2</SUP>, G Kafatos<SUP>3</SUP>, B Adak<SUP>2</SUP>
Citation style for this article: Gobin M, Launders N, Lane C, Kafatos G, Adak B. National outbreak of Salmonella Java phage type 3b variant 9 infection using parallel case?control and case?case study designs, United Kingdom, July to October 2010 . Euro Surveill. 2011;16(47)
ii=20023. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=20023
Date of submission: 16 May 2011 <HR>Between July and October 2010, a national outbreak comprising 136 cases of Salmonella Java phage type 3b variant 9 was identified by the Health Protection Agency. Most cases were female. Cases had a median age of 39.5 years and lived in London, the South East and East of England. Parallel case?control and case?case study designs were undertaken to test the generated hypotheses. The case?case study aimed to examine if the infection was associated with eating food items purchased from commercial catering settings, and the reference group comprised non-travel related cases of S. Enteritidis infected during the same time period as the cases. The case?control study was designed to examine if the infection was associated with specific food items purchased from commercial catering settings, and recruited case-nominated controls. However, in response to poor recruitment we adapted our methods to investigate food exposures in the same way. Results of epidemiological investigations are compatible with salad vegetables as the potential source, but no common suppliers of salad were identified and no organisms were isolated from environmental and food samples. Limitations in the case?control study highlight the potential value of using a combination of epidemiological methods to investigate outbreaks.
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Eurosurveillance, Volume 16, Issue 47, 24 November 2011
Surveillance and outbreak reports
National outbreak of Salmonella Java phage type 3b variant 9 infection using parallel case?control and case?case study designs, United Kingdom, July to October 2010
M Gobin (
- Health Protection Agency South West Regional Office, Health Protection Agency, Gloucester, United Kingdom
- Gastrointestinal, Emerging and Zoonotic Infections Department, Centre for Infections, Health Protection Agency, London, United Kingdom
- Statistics, Modelling and Bioinformatics Department, Centre for Infections, Health Protection Agency, London, United Kingdom
Citation style for this article: Gobin M, Launders N, Lane C, Kafatos G, Adak B. National outbreak of Salmonella Java phage type 3b variant 9 infection using parallel case?control and case?case study designs, United Kingdom, July to October 2010 . Euro Surveill. 2011;16(47)
ii=20023. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=20023 Date of submission: 16 May 2011 <HR>Between July and October 2010, a national outbreak comprising 136 cases of Salmonella Java phage type 3b variant 9 was identified by the Health Protection Agency. Most cases were female. Cases had a median age of 39.5 years and lived in London, the South East and East of England. Parallel case?control and case?case study designs were undertaken to test the generated hypotheses. The case?case study aimed to examine if the infection was associated with eating food items purchased from commercial catering settings, and the reference group comprised non-travel related cases of S. Enteritidis infected during the same time period as the cases. The case?control study was designed to examine if the infection was associated with specific food items purchased from commercial catering settings, and recruited case-nominated controls. However, in response to poor recruitment we adapted our methods to investigate food exposures in the same way. Results of epidemiological investigations are compatible with salad vegetables as the potential source, but no common suppliers of salad were identified and no organisms were isolated from environmental and food samples. Limitations in the case?control study highlight the potential value of using a combination of epidemiological methods to investigate outbreaks.