Skip to main content

Iceberg Lettuce as Suggested Source of a Nationwide Outbreak Caused by Two Salmonella Serotypes, Newport and Reading, in Finland in 2008

Buy Article:

$37.00 plus tax (Refund Policy)

Abstract:

A nationwide outbreak of Salmonella enterica serotypes Newport and Reading occurred between 17 October and 28 November 2008 in Finland. A total of 77 culture-confirmed Salmonella Newport and 30 Salmonella Reading cases, including one case with a double infection, were reported. All strains isolated from the patients were subtyped using serotyping, microbial resistance profiling, and pulsed-field gel electrophoresis (PFGE). Here, the PFGE patterns of the studied Salmonella Newport strains were identical, whereas four different PFGE profiles were found among the Salmonella Reading strains. Two elderly patients died within 2 weeks of the onset of symptoms. Three geographical clusters of cases with an epidemiological link were identified. The traceback investigation suggested that the factor connecting the cases was ready-chopped iceberg lettuce available for mass catering use. However, none of the tested food, environmental samples, or the samples taken from the staff of the processing plant contained Salmonella bacteria. Tracing back to outbreak sources with a short shelf life can be complex.

Document Type: Research Article

DOI: http://dx.doi.org/10.4315/0362-028X.JFP-10-455

Affiliations: 1: National Institute for Health and Welfare, Department of Infectious Disease Surveillance and Control, Bacteriology Unit, PL 30, 00271 Helsinki, Finland. taru.lienemann@thl.fi 2: Finnish Food Safety Authority, Hygiene Unit, Mustialankatu 3, 00790 Helsinki, Finland 3: National Institute for Health and Welfare, Department of Infectious Disease Surveillance and Control, Epidemiologic Surveillance and Response Unit, PL 30, 00271 Helsinki, Finland; European Programme for Intervention Epidemiology Training, European Centre for Disease Prevention and Control, SE-17183 Stockholm, Sweden 4: National Institute for Health and Welfare, Department of Infectious Disease Surveillance and Control, Bacteriology Unit, PL 30, 00271 Helsinki, Finland 5: National Institute for Health and Welfare, Department of Infectious Disease Surveillance and Control, Epidemiologic Surveillance and Response Unit, PL 30, 00271 Helsinki, Finland 6: National Institute for Health and Welfare, Department of Infectious Disease Surveillance and Control, Epidemiologic Surveillance and Response Unit, PL 30, 00271 Helsinki, Finland; European Programme for Intervention Epidemiology Training, European Centre for Disease Prevention and Control, SE-17183 Stockholm, Sweden

Publication date: June 1, 2011

More about this publication?
  • IAFP Members with personal subscriptions to JFP Online: To access full-text JFP or JMFT articles, you must sign-in in the upper-right corner using your Ingenta sign-in details (your IAFP Member Login does not apply to this website).

    The Journal of Food Protection (JFP) is a refereed monthly publication. Each issue contains scientific research and authoritative review articles reporting on a variety of topics in food science pertaining to food safety and quality. The Journal is internationally recognized as the leading publication in the field of food microbiology with a readership exceeding 11,000 scientists from 70 countries. The Journal of Food Protection is indexed in Index Medicus, Current Contents, BIOSIS, PubMed, Medline, and many others.

    Print and online subscriptions are available to IAFP Members and institutional subscribers. IAFP Members with a subscription to JFP Online will have access to all available JFP and JMFT content. Online visitors who are not IAFP Members or journal subscribers will be charged on a pay-per-view basis. Membership and subscription information is available at www.foodprotection.org.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • ingentaconnect is not responsible for the content or availability of external websites
iafp/jfp/2011/00000074/00000006/art00028
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more