The epidemic spread of Salmonella typhimurium phage type 10 in Canada (1970–1979)

1983 ◽  
Vol 29 (11) ◽  
pp. 1583-1588 ◽  
Author(s):  
R. Khakhria ◽  
G. Bezanson ◽  
D. Duck ◽  
H. Lior
Keyword(s):  
Salmonella Typhimurium ◽  
Phage Type ◽  
Food Poisoning ◽  
Epidemic Spread ◽  
Animal Host ◽  
Resistance Determinants ◽  
Poultry Products ◽  
R Plasmids ◽  
Resistant Strains ◽  
Human Infections

The frequency of Salmonella typhimurium phage type 10 across Canada was monitored during the period 1970–1979. Phage type 10 isolations increased from 1.2% in 1970 to 68.8% in 1979 among isolates from human sources and from 1.5 to 30.6% in isolates from nonhuman sources. Examination of food-poisoning outbreaks and a study of the animal–host associations of phage type 10 revealed that contaminated poultry products appear to be the most common sources of human infections. The majority (89.3%) of S. typhimurium phage type 10 strains were sensitive to antibiotics. Of the resistant strains, 73.3% were resistant to single antibiotics and 26.7% were multiresistant. Thirty-three different patterns of antibiotic resistance were observed. A number of the resistance determinants were transferable by conjugation and the R plasmids were found to belong to the incompatibility groups HI1, FII, N, Iα, and C.

scholarly journals Salmonella typhimuriumphage type 141 infections in Sheffield during 1984 and 1985: association with hens' eggs

1988 ◽  
Vol 101 (1) ◽  
pp. 75-82 ◽  
Author(s):  
P. A. Chapman ◽  
P. Rhodes ◽  
Wendy Rylands
Keyword(s):  
Salmonella Typhimurium ◽  
Phage Type ◽  
Food Poisoning ◽  
Causative Role ◽  
Sudden Increase ◽  
Laboratory Investigations

SUMMARYFood poisoning due toSalmonella typhimuriumphage type 141 was unusual inthe Sheffield area before 1984. The sudden increase in incidence of this phage type during 1984 and 1985, and its causative role in several small outbreaks in this period have been investigated. Epidemiological and laboratory investigations suggested that hens' eggs were the most likely source ofS. typhimuriumphage type 141.

scholarly journals Correlation of phage type, biotype and source in strains ofSalmonella typhimurium

1978 ◽  
Vol 81 (2) ◽  
pp. 203-217 ◽  
Author(s):  
E. S. Anderson ◽  
Linda R. Ward ◽  
Maureen J. De Saxe ◽  
D. C. Old ◽  
Ruth Barker ◽  
...  
Keyword(s):  
Salmonella Typhimurium ◽  
Phage Type ◽  
Antibiotic Sensitivity ◽  
Epidemic Spread ◽  
Phage Types ◽  
Sensitivity Pattern ◽  
Before And After ◽  
Typing Methods ◽  
Human Animal ◽  
The Relationship

SummaryA series of 2092 cultures ofSalmonella typhimuriumisolated from human, animal and other sources in 57 countries were differentiated into 204 phage types and 19 primary and 147 full biotypes. Different biotypes belonged to the same phage type and different phage types to the same biotype, so the combination of typing methods differentiated strains more finely than either method alone: 574 different ‘phage type/biotypes’ were distinguished in 1937 cultures belonging to the 204 recognized phage types.The combination of biotyping with phage-typing was valuable in studying the phylogeny and spread of epidemic strains by distinguishing clones of different biotype within the same phage type and by confirming the relationship between cultures isolated from widely dispersed clones and that between cultures isolated before and after a clone had undergone variation in phage type, biotype, colicin type or antibiotic-sensitivity pattern.A widespread outbreak of infection withS. typhimuriumphage type 141 in Scotland comprised independent dissemination of three clones of different biotypes, if, 9f and 31bd. During its epidemic spread in cattle in Britain between 1962 and 1969, another strain underwent variations in phage type (type 44 to type 29), biotype (type 26a to types 26d, 26bd, 26dgi, 26dz and 26i) and antibiotic sensitivity. A group of 275 non-fimbriate, non-inositol-fermenting and non-rhamnose fermenting (FIRN) strains, particularly associated with avian infections and thought to be clonal in origin, contained 27 phage types and 22 full biotypes in the primary biotypes 29–32.

scholarly journals The virulence of salmonella strains for chickens: their excretion by infected chickens

1980 ◽  
Vol 84 (3) ◽  
pp. 479-488 ◽  
Author(s):  
H. Williams Smith ◽  
J. F. Tucker
Keyword(s):  
Salmonella Typhimurium ◽  
Alimentary Tract ◽  
Phage Type ◽  
Food Poisoning ◽  
The Other ◽  
Intramuscular Route ◽  
Fatal Infection ◽  
Phage Types ◽  
Oral Inoculation

SUMMARYInoculated orally, 16 Salmonella typhimurium strains belonging to 12 phage types varied greatly in their abilityto kill 1-day-old chickens; variation was noted even between strains of the same phage type. Fourteen strains belonging to 11 food poisoning serotypes other than S. typhimurium were practically non-lethal whenexamined in this manner. All of them were lethal by the intramuscular route but some were more so than others. Twowere more lethal by this route than one of the S. typhimurium strains that was highly lethal when given orally.With age, chickens rapidly became resistant to fatal infection with the food poisoning strains; given orally, a S.typhimurium strain killed 79 % of 1-day-old chickens but only 3 % of 2-day-old chickens. Of 2 specific poultrypathogenic strains, one, of S. gallinarum, was lethal by oral inoculation to chickens of all ages but the other, of S. pullorum, was only lethal to very young ones.Some salmonella strains, such as those of S. infantis and S. menston, were more efficient at infecting and colonizing the alimentary tract of chickens than were the more virulent S. typhimurium strains, the S. gallinarum and S. pullorum strains and a S. cholerae-suis strain.

scholarly journals An evaluation of strontium chloride, Rappaport and strontium selenite enrichment for the isolation of salmonellas from man, animals, meat products and abattoir effluents

1972 ◽  
Vol 70 (2) ◽  
pp. 367-384 ◽  
Author(s):  
J. B. Iveson ◽  
E. M. Mackay-Scollay
Keyword(s):  
Salmonella Typhimurium ◽  
Sea Water ◽  
Phage Type ◽  
Food Poisoning ◽  
Meat Products ◽  
Strontium Chloride ◽  
Enrichment Broth ◽  
Isolation Techniques ◽  
Wide Range

SUMMARYStrontium chloride enrichment broth was found to be comparable to Rappaport broth for the recovery of a wide range ofSalmonellaserotypes from man, animals, meat products and effluents. With the exception of cloacal samples from reptiles, both procedures were superior to selenite F.The performance of strontium chloride M and selenite F enrichment was improved when effluent samples were incubated at 43° C.Strontium chloride M and Rappaport enrichment were superior to selenite F for the isolation ofArizonaspecies from reptiles.Strontium chloride B, strontium selenite and Rappaport broths were found suitable for the isolation of multipleSalmonellaserotypes from sea water contaminated with abattoir effluents. The strontium chloride B and strontium selenite enrichment media were superior to Rappaport broth when samples were incubated at 43° C.Modified bismuth sulphite agar was found superior to Salmonella-Shigella agar as a solid subculture medium.The investigation of a food poisoning outbreak due toSalmonella typhimuriumphage type 21 is reported.The significance of the choice of sampling and isolation techniques in salmon-ellosis in man and animals is discussed.

scholarly journals An outbreak of human infection due to Salmonella typhi-murium, phage type 4, associated with the use of unpasteurized liquid egg

1963 ◽  
Vol 61 (3) ◽  
pp. 323-330 ◽  
Author(s):  
A. J. Essex-Cater ◽  
D. M. Jones ◽  
F. Swindell
Keyword(s):  
Salmonella Typhimurium ◽  
Phage Type ◽  
Food Poisoning ◽  
Salmonella Typhi ◽  
Human Infection ◽  
Salmonella Infection ◽  
Source Of Infection ◽  
Small Producer ◽  
The City ◽  
Frequent Presence

During 1962, twenty-seven food poisoning incidents due to Salmonella typhimurium, phage type 4, comprising thirty-two cases and twelve symptomless excreters, occurred in the south-east Lancashire conurbation. The source of infection was a single small producer of English liquid egg. Pasteurization of the product coincided with the end of the outbreak. The cases were sporadic in distribution. Investigation of previous incidents due to this phage type in the City of Manchester pointed to egg from the same producer. As a result an investigation was made into the amount and source of unpasteurized egg in use in the city. This revealed the frequent presence of salmonella infection and demonstrated the need for pasteurization of liquid egg before use.

Fournier’s gangrene due to Salmonella Typhimurium in a healthy male: a rare aberrant infection

2020 ◽  
Vol 20 ◽  
Author(s):  
Varsha Gupta ◽  
Lipika Singhal ◽  
Kritika Pal ◽  
Mani Bhushan ◽  
Rajeev Sharma ◽  
...  
Keyword(s):  
Salmonella Typhimurium ◽  
Systemic Disease ◽  
External Genitalia ◽  
Fournier’S Gangrene ◽  
The Body ◽  
Healthy Male ◽  
Fournier's Gangrene ◽  
Salmonella Infections ◽  
Chief Complaints ◽  
Human Infections

Introduction: Human Salmonella infections have been classically distinguised into diseases caused by typhoidal and non-typhoidal salmonella (NTS). Typhiodal salmonella includes S. enterica serovars Typhi and Paratyphi that cause the systemic disease but are restricted to human infections, while NTS consists mainly of other serovars that predominantly cause self-limiting gastroenteritis in humans. Localisation of foci with persisting infection occurs due to dissemination of the bacteria throughout the body and can cause a variety of rare clinical syndromes at aberrant sites. Fournier’s gangrene, a rapidly progressive, often fatal, necrotizing fasciitis of the external genitalia and perineum due to Salmonella Typhimurium, is a rare manifestation and has never been reported. Case: A 22-year-old male, apparently healthy patient with no relevant past medical history presented to surgical emergency with chief complaints of swelling of bilateral scrotal area. Infective etiology was considered and a diagnosis of fournier’s gangrene was made. Pure growth of Salmonella Typhimurium was obtained after repeated subculture and was identified biochemically and on serotyping, as Salmonella enterica serotype Typhimurium using specific antisera. Conclusion: In our case report, we describe a case of fournier’s gangrene due to Salmonella Typhimurium in an otherwise healthy male to highlight the unusual presentation of Non typhoidal salmonellae at an aberrant site. We also emphasize the importance of using selective media like Selenite F broth for isolation of Salmonella Typhimurium from a pus sample.

scholarly journals The distribution of plasmids among a representative collection of Scottish strains of salmonellae

1986 ◽  
Vol 97 (2) ◽  
pp. 199-204 ◽  
Author(s):  
D. J. Platt ◽  
D. J. Brown ◽  
D. S. Munro
Keyword(s):  
Escherichia Coli ◽  
Salmonella Typhimurium ◽  
Antibiotic Resistant ◽  
R Plasmids ◽  
The Difference

SummaryThe distribution of plasmids was studied in a representative collection of salmonella strains which comprised 98Salmonella typhimuriumand 96 other serotypes. Plasmids were detected in 72% of strains (mean 1·3 plasmids/strain) and individual strains harboured between 0 and 7 plasmids. They were more common amongS. typhimuriumthan other serotypes (incidence 92 and 53%; mean 1·9 and 0·8 plasmids/strain respectively). Although a higher proportion ofS. typhimurium(33%) were antibiotic-resistant compared to other serotypes (14%) the evidence presented indicated that R-plasmids were not responsible for the difference observed in the number and distribution of plasmids in these strains. These results were discussed in comparison with similar studies ofEscherichia coliand other enteric genera.

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