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Aspects of Salmonella enteritidis control in poultry

  • J.D.P. O'Brien (a1)


Salmonella enteritidis phage type 4 was recovered from the yolk sacs of broiler chickens in East Anglia, UK, during 1987. When the same phage type 4 was identified in two of the supply flocks, transovarian infection was suspected. These findings were of particular interest to the Public Health Laboratory Service because they provided a possible explanation for the unprecedented increase in food poisoning during 1988 linked to the consumption of shell eggs. Some of the problems of diagnosis are discussed in breeder hens and in the progeny. Effective control of S. enteritidis phage 4 in poultry is dependent on the accurate detection of infected breeder/layer hens in which vertical transmission is the essential distinguishing feature from most other non-invasive, enteric salmonellas found in poultry. The mandatory testing of poultry flocks by the UK Ministry of Agriculture introduced in March 1989 has led to the compulsory slaughter of a large number of birds as prescribed by the Zoonosis (1989) Order. The benefits of this policy should soon become apparent to poultry producers and to the consumer.



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Central Public Health Laboratory (1989) Communicable Disease Report 89/28, CPHL, Colindale Avenue, London, UK
Cooper, G.L., Nicholas, R.A. and Bracewell, C.D. (1989) Serological and bacteriological investigations of chickens from flocks naturally infected with Salmonella enteritidis. Veterinary Record 125: 567572
Dadrast, H., Hesketh, R. and Taylor, D.J. (1990) Egg yolk antibody determination in the identification of salmonella infections in poultry. Veterinary Record 126: 219
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Lister, S.A. (1988) Salmonella enteritidis in broilers and broiler breeders. Veterinary Record 123: 350
MAFF (1981a) The Diseases of Animals (Protein Processing) Order 1981 – SI 676, HMSO, London, UK
MAFF (1981b) The Importation of Processed Animal Protein Order 1981 – SI 677, HMSO, London, UK
MAFF (1989a) The Poultry Laying Flocks (Testing and Registrations etc.) Order 1989 – SI 1964, HMSO, London, UK
MAFF (1989b) The Poultry Breeding Flocks and Hatcheries (Registration and Testing) Order 1989 – SI 1963, HMSO, London, UK
MAFF (1989c) The Zoonosis Order 1989 – SI 285, HMSO, London, UK
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O'Brien, J.D.P. (1988) Salmonella enteritidis infection in broiler chickens. Veterinary Record 122: 214
O'Brien, J.D.P. (1989) Control of Salmonella enteritidis in poultry. Veterinary Record 125: 333
Protais, J., Lahellec, C., Bennejean, G., Morin, Y. and Quintin, E. (1989) Transmission verticale des salmonelles chez le poule: exemple des Salmonella enteritidis (1). Bulletin d'Information, Station Experimentale d'Aviculture de Ploufragan 29: 3743
Rampling, A., Upson, R., Ward, L.R., Anderson, J.R., Peters, E. and Rowe, B. (1989) Salmonella enteritidis phage type 4 infection of broiler chickens: a hazard to public health. Lancet ii: 436438
St.Louis, M.E., Morse, D.L., Potter, M.E., Demelfi, T.M., Guzewich, J.J. and Tauxe, R.V. (1988) The emergence of grade A eggs as a major source of Salmonella enteritidis infection: new implications for the control of salmonellas. Journal of American Medical Association 259: 2103


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Aspects of Salmonella enteritidis control in poultry

  • J.D.P. O'Brien (a1)


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