Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T00:17:20.158Z Has data issue: false hasContentIssue false
  • English
  • Français

Numbers of Salmonella enteritidis in the contents of naturally contaminated hens' eggs

Published online by Cambridge University Press:  19 October 2009

T. J. Humphrey ,
A. Whitehead ,
A. H. L. Gawler ,
A. Henley  and
B. Rowe
T. J. Humphrey
Affiliation:
Public Health Laboratory, Church Lane, Exeter EX2 5AD, UK
A. Whitehead
Affiliation:
Public Health Laboratory, Church Lane, Exeter EX2 5AD, UK
A. H. L. Gawler
Affiliation:
Public Health Laboratory, Church Lane, Exeter EX2 5AD, UK
A. Henley
Affiliation:
Public Health Laboratory, Church Lane, Exeter EX2 5AD, UK
B. Rowe
Affiliation:
PHLS Division of Enteric Pathogens, 61 Colindale Avenue, London NW9 5HT, UK
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Over 5700 hens eggs from 15 flocks naturally infected with Salmonella enteritidis were examined individually for the presence of the organism in either egg contents or on shells. Thirty-two eggs (0·6%) were positive in the contents. In the majority, levels of contamination were low. Three eggs, however, were found to contain many thousands of cells. In eggs where it was possible to identify the site of contamination, the albumen was more frequently positive than the yolk. Storage at room temperature had no significant effect on the prevalence of salmonella-positive eggs but those held for more than 21 days were more likely (P < 0·01) to be heavily contaminated. In batches of eggs where both shells and contents were examined, 1·1% were positive on the former site and 0·9% in the latter.

Type
Research Article
Information
Epidemiology & Infection , Volume 106 , Issue 3 , June 1991 , pp. 489 - 496
Copyright
Copyright © Cambridge University Press 1991

References

REFERENCES

1.Paul, J, Batchelor, B. Salmonella enteritidis phage type 4 and hens' eggs. Lancet 1988; ii: 1421.CrossRefGoogle Scholar
2.Mawer, SL, Spain, GE, Rowe, B. Salmonella enteritidis phage type 4 and hens' eggs. Lancet 1989; i: 280–1.Google Scholar
3.Humphrey, TJ, Cruickshank, JG, Rowe, B. Salmonella enteritidis phage type 4 and hens' eggs. Lancet 1989; i: 281.Google Scholar
4.Humphrey, TJ, Baskerville, A, Mawer, SL, Rowe, B, Hopper, S. Salmonella enteritidis phage type 4 from the contents of intact eggs: a study involving naturally infected hens. Epidemiol Infect 1989; 103: 415–23.CrossRefGoogle ScholarPubMed
5.Anonymous. Salmonella in eggs. PHLS evidence to Agriculture Committee. PHLS Microbiol Digest 1989 6: 1–9.Google Scholar
6.Humphrey, TJ, Greenwood, M, Gilbert, RJ, Rowe, B, Chapman, PA. The survival of salmonellas in shell eggs cooked under simulated domestic conditions. Epidemiol Infect 1989; 103: 33–45.CrossRefGoogle ScholarPubMed
7.Board, RG, Clay, CE, Lock, JL. The behaviour of Salmonella enteritidis in egg contents and raw egg products. J Appl Bacteriol 1989; 67: vii.Google Scholar
8.Coyle, EF, Palmer, SR, Ribeiro, CD et al. Salmonella enteritidis phage type 4 infection: association with hens' eggs. Lancet 1988; ii: 1295–7.CrossRefGoogle Scholar
9.Cowden, JM, Lynch, D, Joseph, CA et al. Report of a national case control study of Salmonella enteritidis phage type 4 infection. Br Med J 1989; 299: 771–3.Google Scholar
10.Chart, H, Rowe, B, Baskerville, A, Humphrey, TJ. Serological response of chickens to Salmonella enteritidis infection. Epidemiol Infect 1990; 104: 63–71.Google Scholar
11.Hopper, SA, Mawer, SL. Salmonella enteritidis in a commercial layer flock. Vet Rec 1988; 123: 351.Google Scholar
12.Lister, SA. Salmonella enteritidis in broilers and broiler breeders. Vet Rec 1988; 123: 350.CrossRefGoogle ScholarPubMed
13.Humphrey, TJ. Public health implications of the infection of egg-laying hens with Salmonella enteritidis phase type 4. Worlds Poult Sci J 1990; 46: 5–13.CrossRefGoogle Scholar
14.Dadrast, H, Hesketh, R, Taylor, DJ. Egg yolk antibody detection in identification of salmonella infected poultry. Vet Rec 1990; 126: 219.Google Scholar
15.Gast, RK, Beard, CW. Production of Salmonella enteritidis-contammated eggs by experimentally infected hens. Avian Dis 1990; 34: 438–46.CrossRefGoogle ScholarPubMed
16.Romanoff, AL, Romanoff, AJ. The avian egg. New York: Wiley & Sons 1949; 672–7.Google Scholar
17.Scott, WM. Food poisoningdue to eggs. Br Med J 1930; 11: 56–8.Google Scholar
18.Rizk, SS, Ayres, JC, Craft, AA. Effect of holding condition on the development of salmonellae in artificially inoculated hens' eggs. Poult Sci 1966; 45: 825–9.CrossRefGoogle ScholarPubMed
19.Garibaldi, JA, Lineweaver, H, Ijichi, K. Number of salmonellas in commercially broken eggs before pasteurisation. Avian Dis 1969; 13: 1096–1101.Google Scholar
20.Anonymous. Department of Health raw shell eggs. EL/88/P/136. London 1988.Google Scholar