The fifteenth CRL-Salmonella workshop : 27 June 2010, Saint Malo, France
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Series/Report no.RIVM report 330604019
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TitleThe fifteenth CRL-Salmonella workshop : 27 June 2010, Saint Malo, France
Translated TitleDe vijftiende CRL-Salmonella workshop : 27 juni 2010, Saint Malo, Frankrijk
PubliekssamenvattingIn dit rapport zijn de verslagen gebundeld van de presentaties die op 27 juni 2010 zijn gehouden tijdens de vijftiende jaarlijkse workshop voor de Europese Nationale Referentie Laboratoria (NRL's) voor de bacterie Salmonella. Tijdens de workshop heeft het overkoepelende orgaan, het Communautair Referentie Laboratorium (CRL) Salmonella,informatie uitgewisseld met de NRL's. Een belangrijk onderdeel daarvan is de presentatie van de resultaten van de jaarlijks terugkerende ringonderzoeken van het CRL waarmee de kwaliteit van de NRLlaboratoria wordt gemeten. De resultaten hiervan worden ook in aparte RIVM-rapporten weergegeven.
Een van de verslagen betreft het rapport van de European Food Safety Authority (EFSA) van 2008 over zoonosen, oftewel ziekten die van dieren op mensen kunnen overgaan. Dit rapport geeft een overzicht van de aantallen en types zoonotische organismen. Hieruit blijkt onder meer dat de ziekte die door Salmonella wordt veroorzaakt na de ziekte die de bacterie Campylobacter veroorzaakt, de zoonose is die in de Europese Unie het vaakst worden gerapporteerd. Verder bevat het rapport een overzicht van de jaarlijkse zogeheten baselinestudies voor Salmonella die tot 2009 zijn uitgevoerd. Hierin is per deelnemend land vastgesteld hoeveel Salmonella voorkomt bij de diverse categorieen pluimvee en varkens. In 2005 is dit onderzoek gedaan bij leghennen, in 2006 bij vleeskuikens, in 2007 bij kalkoenen en slachtvarkens en in 2008 bij fokvarkens en vleeskuikenkarkassen.
De organisatie van de workshop is in handen van het CRL voor Salmonella, dat onderdeel is van het RIVM. De hoofdtaak van het CRLSalmonella referentielaboratoria voor deze bacterie in Europa. De workshop vond plaats in Saint Malo, Frankrijk, aansluitend bij het vierjaarlijkse internationale congres over Salmonella dat daar werd gehouden.
This report contains the summaries of the presentations of the fifteenth annual workshop for the National Reference Laboratories (NRLs) for Salmonella, held on 27 June 2010. The aim of this workshop was to facilitate the exchange of information on the activities of the NRLs and the Community Reference Laboratory for Salmonella (CRL-Salmonella). An important item on the agenda was the presentation of the results of the annual ring trials organised by the CRL, which provide valuable information on the quality of the work carried out by the participating NRL laboratories. The results of these studies are also presented in separate RIVM reports.
Among the summaries is the presentation of the Community summary report on Zoonoses of 2008. This report of the European Food Safety Authority (EFSA) gives an overview of the number and types of zoonotic organisms causing health problems in 2008. Salmonellosis is the second most frequently reported zoonotic disease in the European Union, after Campylobacteriosis. An overview was also given of the annual baseline surveys for Salmonella as performed up to 2009. In these studies each participating country determined the prevalence of Salmonella in certain animal productions. Animal productions under review have been chicken laying hens (2005), chicken broilers (2006), turkeys (2007), slaughter pigs (2007), breeding pigs (2008) and chicken broiler carcasses (2008).
The workshop was organised by the CRL-Salmonella, which is located at the National Institute for Public Health and the Environment. The main task of the CRL-Salmonella is to evaluate the performance of the European NRLs in detecting and typing of Salmonella in different products. The workshop was organised in Saint Malo, France, in conjunction with the International Symposium on Salmonella and Salmonellosis (I3S).
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Thirteenth CRL-Salmonella interlaboratory comparison study (2008) on typing of Salmonella spp. : Dertiende CRL-Salmonella ringonderzoek (2008) voor de typering van Salmonella spp.Berk PA; Maas HME; de Pinna E; Mooijman KA; LZO; cib (Rijksinstituut voor Volksgezondheid en Milieu RIVMHealth Protection Agency HPA, 2010-11-04)The National Reference Laboratories (NRLs) of all 27 European Member States performed well on the 2008 quality control test on Salmonella typing. The 4 laboratories which repeated the test also obtained good scores. An analysis of the pooled results from all NRLs revealed that the NRLs taken as a whole were able to assign the correct name to 97 % of the strains tested. One NRL performed the test at a relatively late date and, consequently, its data could not be included in the group analysis. Since 1992, the NRLs have been required to participate in an annual quality control test, which consists of an interlaboratory comparison study for Salmonella typing. Each Member State designates a specific laboratory within their national boundaries to be responsible for the detection and identification of Salmonella strains from samples isolated from animals and/or food products. These laboratories are then referred to as the National Reference Laboratories. The performance of the NRLs is assessed annually based on their capability to correctly identify 20 Salmonella strains. NRLs from countries outside the European Union occasionally participate in these tests, and NRLs from 2 countries belonging to the European Free Trade Association (EFTA) took part in the 2008 test. The expertise of a number of NRLs was subjected to more severe testing by having not only to identify the 20 Salmonella strains of the quality control test but also to subtype (phage typing) various other Salmonella strains. As such, these laboratories received 10 strains of each of Salmonella Enteritidis and Salmonella Typhimurium. These NRLs typed 97 % of the S. Typhimurium strains correctly. The typing of S. Enteritidis strains proved to be more troublesome, with the NRLs typing 94 % of the strains correctly. The Community Reference Laboratory for Salmonella (CRL-Salmonella) organises this annual interlaboratory comparison study in cooperation with the Health Protection Agency in London, UK. The CRL-Salmonella is situated at the National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands.
Sixteenth EURL-Salmonella interlaboratory comparison study (2011) on typing of Salmonella spp. : Zestiende EURL-Salmonella ringonderzoek (2011) voor de typering van Salmonella spp.Jacobs-Reitsma WF; Pol-Hofstad IE; Maas HME; de Pinna E; Mooijman KA; LZO; cib (Rijksinstituut voor Volksgezondheid en Milieu RIVM, 2012-10-24)The 28 National Reference Laboratories (NRLs) of all 27 European Union (EU) Member States performed well on the 2011 quality control test on Salmonella typing. Two laboratories were found to require a follow-up study on their first test. Altogether, the EU-NRLs were able to assign the correct name to 97% of the strains tested. Other participants interlaboratory comparison study Salmonella Since 1992, the NRLs of the EU Member States have been required to participate in annual quality control tests, which consist of interlaboratory comparison studies on Salmonella. Laboratories from countries outside the European Union, like EU-candidate countries, occasionally participate in these tests on a voluntary basis. Eight additional laboratories participated in the current study. Two EUcandidate countries amongst these eight additional participants did not meet the criteria for good performance in the first round. One of them did not reach this goal in the follow-up study either. The other was not able to participate in the follow-up study; a follow-up study is not compulsory for non-EU laboratories. Each EU Member State designates a specific laboratory within their national boundaries to be responsible for the detection and identification of Salmonella strains from animals and/or food products. These laboratories are then referred to as the National Reference Laboratories. The performance of these NRLs on Salmonella typing is assessed annually, based on their capability to correctly identify 20 Salmonella strains. Phage typing Nine NRLs not only serotyped the 20 Salmonella strains of the quality control test, but also subtyped 20 additional strains by phage typing. For this, the laboratories received ten strains of Salmonella Enteritidis and ten strains of Salmonella Typhimurium. These NRLs typed 98% of the S. Typhimurium strains correctly. Of the S. Enteritidis strains, 88% were phage typed correctly. The European Union Reference Laboratory for Salmonella (EURL-Salmonella) organises this annual interlaboratory comparison study on typing of Salmonella in cooperation with the Health Protection Agency in London, UK. The EURLSalmonella is situated at the National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands.
Test results of Salmonella typing by the NRLs-Salmonella in the Member States of the EU and the EnterNet Laboratories - Collaborative study VI (2001) on typing of SalmonellaKorver H; Raes M; Maas HME; Ward LR; Wannet WJB; Henken AM; MGB; LIS (PHLS-Colindale/London, 2002-09-06)Test results of Salmonella sero- and phage typing and antimicrobial susceptibility testing by the National Reference Laboratories for Salmonella in the Member States of the European Union and the EnterNet Laboratories: Collaborative study VI (2001) for Salmonella. The sixth collaborative typing study for Salmonella was organised by the Community Reference Laboratory for Salmonella (CRL-Salmonella, Bilthoven, The Netherlands) in collaboration with the Public Health Laboratory Services (PHLS), London, UK. Seventeen National Reference Laboratories for Salmonella (NRLs-Salmonella) and 15 EnterNet laboratories (ENLs) participated in the study. Three of the NRLs for Salmonella are also ENLs. The results of these three NRL-ENL laboratories will only be evaluated with the NRLs for Salmonella. In total, 19 strains of the species Salmonella enterica subsp. enterica and one strain of the species Salmonella enterica subsp. arizonae were selected for serotyping and antimicrobial susceptibility testing, while 10 strains of Salmonella Typhimurium (STM) and 10 strains of Salmonella Enteritidis (SE) were selected for phage typing. In general, no problems were encountered with the typing of the O antigens. However, some laboratories had problems with typing the H antigens. Antimicrobial susceptibility testing revealed data showing that standardisation of this technique would be required to allow for comparison between laboratories. The majority of the EnterNet Laboratories and National Reference Laboratories for Salmonella did not encounter major problems with phage typing of STM and SE strains.