[en] Salmonella is a mesophilic bacterium that share common characteristics with Enterobacteriaceae. Two species are described: Salmonella enterica and Salmonella bongori. Beside the fact that the infection in host cells requires type III secretion-systems, little is known, at present, about virulence mechanisms. Among the cultural detection methods, the use of semi-solid media seems more efficient than the others for Salmonella recovery. The techniques based on genetic amplification may be useful in order to further characterize the isolated strains. Salmonella can be isolated from the intestine of numerous animal species and its survival in the surroundings may be quite long. Several serotypes may cause clinical salmonellosis while others may be responsible for animal species of a carrier state. In this abstract, the influence of swine production system will be developed. The sustainable and ongoing surveillance are justified by the fact that Salmonella leads to numerous foodborne cases and outbreaks and is responsible of important economic and social costs. This surveillance aims to improve the sanitary quality of food from "farm to fork". The preventive methods available for the pre-harvest production step and for the slaughterhouse will be also evoked.
Disciplines :
Food science Microbiology Veterinary medicine & animal health
Author, co-author :
Korsak Koulagenko, Nicolas ; Université de Liège - ULiège > Département de sciences des denrées alimentaires > Hygiène des denrées alimentaires
Clinquart, Antoine ; Université de Liège - ULiège > Département de sciences des denrées alimentaires > Technologie des denrées alimentaires
Daube, Georges ; Université de Liège - ULiège > Département de sciences des denrées alimentaires > Microbiologie des denrées alimentaires
Language :
French
Title :
Salmonella spp. in food of animal origin: a continuous threat for public health?
Alternative titles :
[fr] Salmonella spp. dans les denrées alimentaires d’origine animal : un réel problème de santé publique ?
(2002) EN ISO 6579 Microbiologie des Aliments - Méthode Horizontale Pour la Recherche des Salmonella spp., 27p. , Association Française de Normalisation : Saint-Denis, Décembre
(2004) Avis 2004-07: Programme de Surveillance Pour la Réduction de la Prévalence de Salmonella Dans Les Exploitations Porcines Belges (Dossier Sci Com 2003/22), 3p. , Agence Fédérale pour la Sécurité de la Chaîne Alimentaire, Bruxelles
Alban, L., Use of veterinary epidemiology to improve food safety along the food chain - An industry perspective (2004) International Conference: Veterinary Public Health and Food Safety. Towards a Risk Based Chain Control, pp. 27-28. , Smulders, F.J.M. and Collins, J.D. (Eds). Rome, 22-23 October 2004. Istituto Zooprofilattico Sperimentale, Rome
Anderson, E., Ward, L., De Saxe, M., De Sa, J., Bacteriophage-typing designations of Salmonella typhimurium (1977) J. Hyg., 78, pp. 297-300
Bager, F., Petersen, J., Sensitivity and Specificity of different methods for the isolation of Salmonella from pigs (1991) Acta Vet. Scand., 32, pp. 473-481
Baggesen, D., Sandvang, D., Aarestrup, F., Characterization of Salmonella enterica serovar typhimurium DT104 isolated from Denmark and comparison with isolates from Europe and the United States (2000) J. Clin. Microbiol., 38, pp. 1581-1586
Bäumler, A., Tsolis, R., Ficht, T., Adams, L., Evolution of host adaptation in Salmonella enterica (1998) Infect. Immun., 66, pp. 4579-4587
Bäumler, A., Tsolis, R., Heffron, F., Virulence Mechanisms of Salmonella and their genetic basis (2000) Salmonella in Domestic Animals, pp. 57-72. , Wray C., Wray A. (Eds.), CABI Publishing: Oxon
Bean, N., Griffin, P., Foordborne disease outbreaks in the United States, 1973-1987: Pathogens, vehicles, and trends (1990) J. Food Prot., 53, pp. 804-817
Bean, N., Goulding, J., Daniels, M., Angulo, F., Surveillance for foodborne disease outbreaks-United States, 1988- 1992 (1997) J. Food Prot., 60, pp. 1265-1286
Bender, J., Hedberg, C., Boxrud, D., Besser, J., Wicklund, J., Smith, K., Osterholm, M., Use of molecular subtyping in surveillance for Salmonella enterica serotype Typhimurium (2001) N. Engl. J. Med., 344, pp. 189-195
Bennett, A., Greenwood, D., Tennant, C., Banks, J., Betts, R., Rapid and definitive detection of Salmonella in foods by PCR (1998) Lett. Appl. Microbiol., 26, pp. 437-441
Berends, B., Urlings, H., Snijders, J., Van Knapen, F., Identification and quantification of risk factors in animal management and transport regarding Salmonella spp. in pigs (1996) Int. J. Food Microbiol., 30, pp. 37-53
Borch, E., Nesbakken, T., Christensen, H., Hazard identification in swine slaughter with respect to foodborne bacteria (1996) Int. J. Food Microbiol., 30, pp. 9-25
Boudry, C., Korsak, N., Jacob, B., Etienne, G., Thewis, A., Daube, G., Ecologie de Salmonella dans le tube digestif du porc à l'abattage et étude de la contamination des carcasses (2002) Ann. Méd. Vet., 146, pp. 353-360
Brown, D., Mather, H., Browning, L., Coia, J., Investigation d'infections humaines à salmonella enterica sérotype Java en Ecosse: Association possible avec de la volaille importée (2003) Euro Surveill., 8, pp. 35-40
Busse, M., Media for salmonella (1995) Int. J. Food Microbiol., 26, pp. 117-131
Buzby, J., Morrison, M., Food irradiation: An update (1999) FoodReview, 22, pp. 21-22
(2003) Disease Information: Salmonella Enteritidis, , http://www.cdc.gov/ncidod/dbmd/diseaseinfo/salment_g.htm, en ligne
China, B., Goffaux, F., Secretion of virulence by Escherichia coli (1999) Vet. Res., 30, pp. 181-202
Cornelis, G., Type III secretion: A bacterial device for close combat with cells of their eukaryotic host (2000) Phil. Trans. R. Soc. Lond. B, 355, pp. 681-693
Corry, J., James, C., James, S., Hinton, M., Salmonella, Campylobacter and Escherichia coli O157:H7 decontamination techniques for the future (1995) Int. J. Food Microbiol., 29, pp. 187-196
Cudjoe, K., Krona, R., Detection of Salmonella from raw food samples using Dynabeads anti-Salmonella and a conventional reference method (1997) Int. J. Food Microbiol., 37, pp. 55-62
Dahl, J., Wingstrand, A., Reduction of subclinical salmonella-infection in Danish pig herds. A summary of documented and plausible risk-factors and how this knowledge is implemented into a guide for reduction and control of salmonella-infections (1997) Proceedings of Salmonella and Salmonellosis '97, pp. 631-635. , Colin P., Le Goux J.-M., Clement G. (Eds), Ploufragan (France), May 20-22
Dahl, J., Wingstrand, A., Nielsen, B., Baggesen, D., Elimination of Salmonella typhimurium infection by the strategic movement of pigs (1997) Vet. Rec., 140, pp. 679-681
Daube, G., Van Loock, F., Surveillance des toxi-infections d'origine alimentaire en Belgique (1997) Arch. Public Health, 55, pp. 351-361
Daube, G., De Zutter, L., Dierick, K., (2001) Surveillance de la Contamination des Denrées Alimentaires d'Origine Animale Par E. Coli O157 Entérohémorragiques, Salmonella spp., Listeria monocytogenes et Campylobacter spp. Thermophiles, 88p. , rapport 2001. Laboratoire National de Référence en microbiologie des denrées alimentaires, Université de Liège : Liège
Daube, G., De Zutter, L., Dierick, K., (2003) Surveillance de la Contamination des Denrées Alimentaires d'Origine Animale Par, Salmonella spp., Campylobacter spp. Thermophiles, E. Coli O157 Entérohémorragiques et Listeria Monocytogenes, 101p. , Rapport de l'année 2002. Laboratoire National de Référence en microbiologie des denrées alimentaires, Université de Liège : Liège
Davies, P., Morrow, W., Jones, F., Deen, J., Fedorka-Cray, P., Harris, I., Prevalence of Salmonella in finishing swine raised in different production systems in North Carolina, USA (1997) Epidemiol. Infect., 119, pp. 237-244
De Smedt, J., Bolderdijk, R., Rappold, H., Lautenschlaeger, D., Rapid Salmonella detection in foods by motility enrichment semisolid Rappaport-Vassiliadis medium (1986) J. Food Prot., 49, pp. 510-514
De Smedt, J., Bolderdijk, R., Dynamics of Salmonella isolation with modified semi-solid Rappaport-Vassiliadis medium (1987) J. Food Prot., 50, pp. 658-661
De Zutter, L., Daube, G., Improved isolation of Salmonella from meat using the diagnostic semisolid Salmonella agar Diasalm (1998) Foodborne Pathogens: Detection and Typing, , International Society for Fat research-International Standard Organization- Association of Official Analytical Chemists (Eds.). International symposium sponsored by International Society for Fat research-International Standard Organization-Association of Official Analytical Chemists, 20-4, Den Hagen, The Netherlands
Dibb-Fuller, M., Allen-Vercoe, E., Thorns, C., Woodward, M., Fimbriae- and flagella-mediated association with and invasion of cultured epithelial cells by Salmonella enteritidis (1999) Microbiology, 145, pp. 1023-1031
Dilasser, F., Grout, J., Tache, J., Fach, P., AFNOR evaluation of a PCR based test for detecting Salmonella spp. in food samples: Probelia TM (1997) Proceedings of Salmonella and Salmonellosis '97, pp. 117-120. , Colin P., Le Goux J.-M., Clement G. (Eds), Ploufragan (France), May 20-22
Doublet, B., Boyd, D., Mulvay, M., Cloeckaert, A., The Salmonella genomic island is an integrative mobilizable element (2005) Molecular Microbiology, , in press
(2002) Nieuwsbrief
Nummer, , 6 - Oktober
(2002) Playing It Safe with Eggs, , http://www.cfsan.fda.gov/~dms/fs-eggs.html, en ligne
Fedorka-Gray, P., Kelley, L., Stabel, T., Gray, J., Laufer, J., Alternate routes of invasion may affect pathogenesis of Salmonella typhimurium in swine (1995) Infect. Immun., 63, pp. 2658-2664
Fedorka-Cray, P., Gray, J., Wray, C., Salmonella infection in pigs (2000) Salmonella in Domestic Animals, pp. 191-207. , Wray C., Wray A. (Eds.), CABI Publishing : Oxon
Fisher, I., International trends in salmonella serotypes 1998-2003: A surveillance report the Enter-net international surveillance network (2004) Euro Surveill., 9, pp. 9-10
Frenzen, P., Riggs, T., Buzby, J., Breuer, T., Roberts, T., Voeltsch, D., Reddy, S., Salmonella cost estimate updated using FoodNet Data (1999) FoodReview, 22, pp. 10-15
(1999) Literature Survey of the Various Techniques Used in Listeria Intervention, , http://www.wisc.edu/fri/briefs/listeria.pdf, en ligne
Gray, J., Fedorka-Cray, P., Stabel, T., Kramer, T., Natural transmission of Salmonella choleraesuis in swine (1996) Appl. Environ. Microbiol., 62, pp. 141-146
Gray, J., Fedorka-Cray, P., Survival and infectivity of Salmonella Choleraesuis in swine feces (2001) J. Food Prot., 64, pp. 945-949
Grimont, P., Grimont, F., Bouvet, P., Taxonomy of the genus Salmonella (2000) Salmonella in Domestic Animals, pp. 1-17. , Wray C., Wray A. (Eds.), CABI Publishing : Oxon
Haeghebaert, S., Le Querrec, F., Bouvet, P., Gallay, A., Espie, E., Vaillant, V., Les toxi-infections alimentaires collectives en France en 2001 (2002) B.E.H., 50, pp. 249-253
Hald, T., Wingstrand, A., Swanenburg, M., Altrock, A., Limpitakis, N., Thorberg, B.-M., Harvest epidemiology of Salmonella contamination in EU pig slaughterhouses (1999) Proceedings of the 3rd International Symposium on the Epidemiology and Control of Salmonella in Pork, pp. 273-276. , Bahnson P. (Ed.), Washington DC (USA), August 5-7 1999. US Swine consortium : Urbana-Champaign
Hanes, D., Nontyphoid Salmonella (2003) International Handbook of Foodborne Pathogens, pp. 137-149. , Miliotis N., Bier J. (Eds.), Marcel Dekker : New York
Hansen, C., Knudsen, K., Jensen, B., Kjarsgaard, H., Effect of meal feed and coarser grinding of pelleted feed on productivity, microbiology, and physico-chemical properties in the gastro-intestinal tract of finishers (2003) Proceedings of the 4th International Symposium on the Epidemiology and Control of Salmonella and Other Food Borne Pathogens in Pork, pp. 106-108. , van der Wolf (Ed.), Leipzig (Germany), September 2-5 2001. Addix : Leipzig
Hilton, A., Banks, J., Penn, C., Optimization of RAPD for fingerprinting Salmonella (1997) Lett. Appl. Microbiol., 24, pp. 243-248
Hu, L., Kopecko, D., Salmonella Typhi and Paratyphi (2002) Molecular Medical Microbiology, 2, pp. 1365-1391. , Sussman M. (Ed.), Academic Press: London
L, H.U., Kopecko, D., Typhoid Salmonella (2003) International Handbook of Foodborne Pathogens, pp. 151-165. , Miliotis N., Bier J. (Eds.), Marcel Dekker: New York
Hueck, C., Type III protein secretion systems in bacterial pathogens of animals and plants (1998) Microbiol. Mol. Biol. Rev., 62, pp. 379-433
Humphrey, T., Public-health aspects of Salmonella infection (2000) Salmonella in Domestic Animals, pp. 245-263. , Wray C., Wray A. (Eds.), CABI Publishing: Oxon
Salmonellae (1996) Microorganisms in Foods 5. Characteristics of Microbial Pathogens, pp. 217-264. , ICMSF (Ed.), Blackie Academic & Professional: London
(2004) Amendment to ISO 6579:2002, Annex D (Normative) Detection of Salmonella spp. in Animal Faeces and in Samples of the Primary Production Stage, , Working document, 25 October
Jones, M., Wigley, P., Page, K., Hulme, S., Barrow, P., The role of Type-III secretion in the virulence of Salmonella enterica serovar Gallinarum and Salmonella enterica serovar Pullorum (2002) Proceedings of International Salmonella and Salmonellosis, pp. 145-149. , Colin P., Clement G. (Eds.), 29-31 may 2002, Ploufragan, France. Zoopole développement: Ploufragan, 2002. Ispaia : Ploufragan
Jorgensen, L., Dahl, J., Wingstrand, A., The effect of feeding pellets, meal and heat treatment on the salmonella-prevalence in finishing pigs (1999) Proceedings of the 3rd International Symposium on the Epidemiology and Control of Salmonella in Pork, pp. 308-312. , Bahnson P. (Ed.), Washington DC (USA), August 5-7 1999. US Swine consortium : Urbana-Champaign
Jorgensen, L., Kjaersgaard, H., Wachman, H., Jensen, B., Knudsen, K., Effect of pelleting and use of lactic acid in feed on Salmonella prevalence and productivity in weaners (2003) Proceedings of the 4th International Symposium on the Epidemiology and Control of Salmonella and Other Food Borne Pathogens in Pork, pp. 109-111. , van der Wolf (Ed.), Leipzig (Germany), September 2-5 2001. Addix : Leipzig
Korsak, N., Daube, G., Ghafir, Y., Chahed, A., Jolly, S., Vindevogel, H., An efficient sampling technique used to detect four foodborne pathogens on pork and beef carcasses in nine Belgian abattoirs (1998) J. Food Prot., 61, pp. 535-541
Korsak, N., Groven, B., Jacob, B., Daube, G., Flament, E., Prevalence of Salmonella along a meat pork production system (2002) Food Safety Assurance and Veterinary Public Health - Volume 1: Food Safety Assurance in the Pre-harvest Phase, 1, pp. 260-262. , F.J.M. Smulders and J.D. Collins (Eds), Wageningen Academic Publishers: Wageningen
Korsak, N., Jacob, B., Groven, B., Etienne, G., China, B., Ghafir, Y., Daube, G., Salmonella contamination of pigs and pork in an integrated pig production system (2003) J. Food Prot., 66, pp. 1126-1133
Landman, W., Hartman, E., Doornenbal, P., Salmonella-isolatie uit pluimveemonsters: Vergelijking diagnostic semi-solid salmonella (diasalm) en rappaport vassiliadis bouillon (rv) Detection of Salmonella spp. in poultry samples: Comparison between Diagnostic Semisolid Agar (Diasalm) and Rappaport Vassiliadis broth (rv) (1996) De Ware(n)-Chemicus, 26, pp. 234-237
Le Minor, L., Genus III. Salmonella (1984) Bergey's Manual of Systematic Bacteriology, 1, pp. 427-458. , Krieg N., Holt, J. (Eds.), Williams and Wilkins: Baltimore
Letellier, A., Messier, S., Paré, J., Ménard, J., Quessy, S., Distribution of Salmonella in swine herds in Quebec (1999) Vet. Microbiol., 67, pp. 299-306
Lin, A., Usera, M., Barrett, T., Golsby, R., Application of random amplified polymorphic DNA analysis to differentiate strains of Salmonella enteritidis (1996) J. Clin. Microbiol., 34, pp. 870-876
Lo Fo Wong, D., Hald, T., (2000) Salmonella in Pork (SALINPORK): Pre-harvest and Harvest Control Options Based on Epidemiologic, Diagnostic and Economic Research, 251p. , Final report to European Commission of Project FAIR1 CT95-0400
Mead, P., Slutsker, L., Dietz, V., McCaig, L., Bresee, J., Shapiro, C., Griffin, P., Tauxe, R., Food-related illness and death in the United States (1999) Emerg. Infect. Dis., 5, pp. 607-625
Mermin, J., Villar, R., Carpenter, J., Roberts, L., Samaridden, A., Gasanova, L., Lomakina, S., Mintz, E., A massive epidemic of multidrug-resistant typhoid fever in Tajikistan associated with consumption of municipal water (1999) J. Infect. Dis., 179, pp. 1416-1422
Mitchell, M., Shane, S., Preliminary findings of Salmonella spp. in captive green iguanas (Iguana iguana) and their environment (2000) Prev. Vet. Med., 45, pp. 297-304
Murray, C., Environmental aspects of Salmonella (2000) Salmonella in Domestic Animals, pp. 265-283. , Wray C., Wray A. (Eds.), CABI Publishing: Oxon
Nesbakken, T., Nerbrink, E., Rotterud, J., Borch, E., Reduction of Yersinia enterocolitica and Listeria spp. on pig carcasses by enclosure of the rectum during slaughter (1994) Int. J. Food Microbiol., 23, pp. 197-208
Nisbet, N., Defined competitive exclusion cultures in the prevention of enteropathogen colonisation in poultry and swine (2002) Antonie Van Leeuwenhoek, 81, pp. 481-486
Oboegbulem, S., Comparison of two enrichment media and three selective media for isolation of salmonellae from fresh chicken carcass rinse fluids and sewer swabs (1993) Int. J. Food Microbiol., 18, pp. 167-170
Olive, D., Bean, P., Principles and applications of methods for DNA-Based typing of microbial organisms (1999) J. Clin. Microbiol., 37, pp. 1661-1669
Directive 92/117/CEE du Conseil du 17 décembre 1992 concernant les mesures de protection contre certaines zoonoses et certains agents zoonotiques chez les animaux et dans les produits d'origine animale, en vue de prévenir les foyers d'infection et d'intoxication dus à des denrées alimentaires (1993) J. Off. Comm. Eur., L062, pp. 38-48. , 15 mars 1993
Décision 2119/98/CE du Parlement Européen et du Conseil du 24 septembre 1998 instaurant un réseau de surveillance épidémiologique et de contrôle des maladies transmissibles dans la Communauté (1998) J. Off. Comm. Eur., L268, pp. 1-6. , 3 octobre 1998
Report to the European Parliament and to the Council on the measures to be put in force for the control and prevention of zoonoses - Proposal for a Directive of the European Parliament and of the Council on the moniroting of zoonoses and zoonotic agents, amending Council Decision 90/424/EEC and repealing Council Directive 92/117/EEC - Proposal for a Regulation of the European Parliament and of the Council on the control of salmonella and other food-borne zoonotic agents and amending Council Directives 64/432/EEC, 72/462/EEC and 90/539/EEC, COM (2001) 452 final, 01.08.2001
Règlement (CE) no 2160/2003 du Parlement Européen et du Conseil du 17 novembre 2003 sur le contrôle des salmonelles et d'autres agents zoonotiques spécifiques présents dans le chaîne alimentaire (2003) J. Off. Comm. Eur., L325, pp. 1-15. , 12 décembre 2003
Directive 2003/99/CE du Parlement Européen et du Conseil du 17 septembre 2003 sur la surveillance des zoonoses et des agents zoonotiques, modifiant la décision 90/424/CEE du Conseil et abrogeant la directive 92/117/CEE du Conseil (2003) J. Off. Comm. Eur., L325, pp. 31-40. , 12 décembre 2003
Rajic, A., Keenliside, J., McFall, M., Deckert, A., Muckle, A., O'Connor, B., Manninen, K., McEwen, S., Longitudinal study of Salmonella species in 90 Alberta swine finishing farms (2005) Vet. Microbiol., 105, pp. 47-56
Roof, M., Kramer, T., Kunesh, J., Roth, J., In vivo isolation of Salmonella choleraesuis from porcine neutrophils (1992) Am. J. Vet. Res., 53, pp. 1333-1336
Roof, M., Doitchinoff, D., Safety, efficacy, and duration of immunity induced in swine by use of an avirulent live Salmonella choleraesuis-containing vaccine (1995) Am. J. Vet. Res., 56, pp. 39-44
Rycroft, A., Structure, function and synthesis of surface polysaccharides in Salmonella (2000) Salmonella in Domestic Animals, pp. 19-33. , Wray C., Wray A. (Eds.), CABI Publishing: Oxon
Sarwari, A., Magder, L., Levine, P., McNamara, A., Knower, S., Armstrong, G., Etzel, R., Morris, G., Serotypes distribution of Salmonella isolates from food animals after slaughter differs from that of isolates found in humans (2001) J. Infect. Dis., 183, pp. 1295-1299
Schneitz, C., Mead, G., Competitive exclusion (2000) Salmonella in Domestic Animals, pp. 301-322. , Wray C., Wray A. (Eds.), CABI Publishing : Oxon
(1998) Opinion of the SCVMPH on Benefits and Limitations of Antimicrobial Treatments for Poultry Carcasses, , http://europa.eu.int/comm/food/fs/sc/scv/out14_en.pdf, adopted on 30 October [en ligne]
(2000) Opinion of the SCVMPH on Food-borne Zoonoses, , http://europa.eu.int/comm/food/fs/sc/scv/out32_en.pdf, 12 April [en ligne]
(2003) Opinion of the SCVMPH on Salmonellae in Foodstuffs, , http://europa.eu.int/comm/food/fs/sc/scv/out66_en.pdf, adopted on 14-15 April [en ligne]
Shangkuan, Y., Lin, H., Application of Random Amplified Polymorphic DNA analysis to differentiate strains of Salmonella typhi and other Salmonella species (1998) J. Appl. Microbiol., 85, pp. 693-702
Thorns, J., Woodward, M., Fimbriae of Salmonella (2000) Salmonella in Domestic Animals, pp. 35-55. , Wray C., Wray A. (Eds.), CABI Publishing : Oxon
Threlfall, E., Epidemic Salmonella typhimurium DT 104-a truly international multiresistant clone (2000) J. Antimicrob. Chemother., 46, pp. 7-10
Van Der Zee, H., Huis In't Veld, J., Methods for the rapid detection of Salmonella (2000) Salmonella in Domestic Animals, pp. 373-391. , Wray C., Wray A. (Eds.), CABI Publishing: Oxon
Van Oye, E., Ghijsels, G., Chasseur, M.-L., De salmonellosen en shigellosen in België van 1962 tot 1976: Een bilan (1977) Tijdschr. Voor Geneeskunde, 19, pp. 1055-1059
(2002) Salmonella Serotypes Analysed at the VAR in 2001. Evolution among Poultry, Cattle and Pig Isolates from 1992 to 2001 with Results of Antimicrobial Testing, 28p. , Veterinary and Agrochemical Centre - Centrum voor Onderzoek in Diergeneeskunde en Agrochemie - Centre d'Etude et de Recherches Vétérinaires et Agrochimiques : Brussels
Varnam, A., Evans, M., Chapter 4 - Salmonella (1996) Foodborne Pathogens - An Illustrated Text 2nd Ed., pp. 51-86. , Varnam A., Evans, M. (Eds.). Manson Publishing : London
Vimal, D., Khullar, M., Gupta, S., Ganguly, N., Intestinal mucins: The binding sites for Salmonella typhimurium (2000) Mol. Cell. Biochem., 204, pp. 107-117
Walker, R., Kinde, H., Anderson, R., Brown, A., Comparison of VIDAS enzyme-linked fluorescent immunoassay using Moore swab sampling and conventional culture method for Salmonella detection in bulk tank milk and in-line milk filters in California dairies (2001) Int. J. Food Microbiol., 67, pp. 123-129
Waltman, W., Methods for the cultural isolation of Salmonella (2000) Salmonella in Domestic Animals, pp. 355-372. , Wray C., Wray A. (Eds.), CABI Publishing : Oxon
Wegener, H., Baggesen, D., Investigation of an outbreak of human salmonellosis caused by Salmonella enterica ssp. Enterica serovar Infantis by use of pulsed field gel electrophoresis (1996) Int. J. Food Microbiol., 32, pp. 125-131
Wegener, H., Hald, T., Lo Fo Wong, D., Madsen, M., Korsgaard, H., Bager, F., Gerner-Smidt, P., Molbak, K., Salmonella control programs in Denmark (2003) Emerg. Infect. Dis., 9, pp. 774-780
Wybo, I., Wildemauwe, C., Godard, C., Bertrand, S., Collard, J.-M., Antimicrobial drug resistance in non-typhoid human Salmonella in Belgium: Trends for the period 2000-2002 Acta Clin. Belg., 59, pp. 152-160