The basic phage set for typing bovine staphylococci

Carroll, PJ; Francis, Prasanth

doi:10.1017/s0022172400060769

Cited by 8 publications

(9 citation statements)

References 3 publications

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“…Biotyping, serotyping, phage typing and plasmid pattern analysis have been used for epidemiological studies of S. aureus [4][5][6][7]. However, these methods are not without limitations.…”

Section: Introductionmentioning

confidence: 99%

“…Using a set of 16 phages at routine test dilution resulted in 84-9 % typability of S. aureus [7]. When the international basic set of phages were subsequently tested only 73-6 % of S. aureus isolates were typeable [4]. Matthews and co-workers [5] recently reported on plasmid profile analysis for discriminating between isolates of Staphylococcus species and concluded that plasmid profile analysis was not an adequate method for differentiating isolates of Staphylococcus species recovered frequently from bovine milk.…”

Section: Introductionmentioning

confidence: 99%

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Genomic fingerprints ofStaphylococcus aureusof bovine origin by polymerase chain reaction-based DNA fingerprinting

et al. 1994

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“…Biotyping, serotyping, phage typing and plasmid pattern analysis have been used for epidemiological studies of S. aureus [4][5][6][7]. However, these methods are not without limitations.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genomic fingerprints ofStaphylococcus aureusof bovine origin by polymerase chain reaction-based DNA fingerprinting

et al. 1994

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“…Furthermore, the cultures used came from widely distributed geographical locations to minimize indigenous-influences that might affect a native population of organisms relative to their susceptibility to phage (Carrol and Francis 1985). Phages were isolated by enriching individual 100-mL, untreated sewage samples, obtained from local treatment plants during different seasons of the year.…”

Section: 'mentioning

confidence: 99%

“…To date, phage sets have been reported for a number of microorganisms, including Staphylococcus aureus of both human (Fisk 1942a(Fisk , 1942bFelix and Callow 1956;Blair and Williams 1961) and animal origin (Davidson 1961;Blouse and Meekins 1968;Carrol and Francis 1985;Shimizu 1977), S. epidermidis (Talbot and Parisi 1977;Verhoef et al 1972), Escherichia coli (Gershman et al 1984), Salmonella typhimurium (Callow 1959;Wilson et al 1971), and a single set for characterizing salmonellae in general (Gershman and Markowsky 1983).…”

mentioning

confidence: 99%

Phage typing set for differentiating Staphylococcus epidermidis

Gershman¹,

Hunter²,

Harmon³

et al. 1988

Can. J. Microbiol.

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“…Molecular typing techniques have also been applied for epidemiological studies of 5. uureus (MATTHKWS et al, 1994;AARIISTRUP et al, 1995;FITZ-GEM1.D et al, 1997). The international phage set (IPS) for typing human strains of .I: uureus has been determined also to be useful in typing strains o f ,I: aureus of animal origin (SI IIMIZU et al, 1979;PARKER, 1983;CARROIJ. and FRANCIS, 1985;SWARTZ et al, 1985).…”

Section: Introductionmentioning

confidence: 99%

Longitudinal Study on the Susceptibility to Bacteriophages of Staphylococcus aureus Strains Isolated from Dairy Farms in Trinidad

Adesiyun

Romain

1999

Journal of Veterinary Medicine, Series B

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A (,-month Ionpjtudinal study was conducted on 30 dairy cows in early lactation and their human handlers on six farms across Trinidad. Weekly samples of bulk milk, composite milk and anterior nares and hand swabs from human handlers were collected and cultured for .TtqbLylococcur uweur on Baird-Parker agar (UPA). The susceptibility of .C uunus stram to bacteriophages and the relatedness of strains isolated Over the study period were determined. Sixty-three (51.2"In) of 123 strains of S. uunus from bulk milk were typable compared with 11 1 (57.3 'Yn) of 194 and 82 (61.7 "/a) of 133 strains isolated from composite milk and human handlers, respectively. The differences were not statistically significant (P > 0.05; ~3 . Bovine phage 42D lysed 3.3% (4 of 123), 16.5Yn (32 of 194) and 12.0% (16 of 133) of .r. uureus strains isolated from bulk milk, composite milk and human handlers, respectively. The differences were statistically slpificant (P < 0.001; ~3 . Amongst bulk milk isolates 0f.C uutprrs, 35 (31.8 Yo) of 110 exhibited relatedness in 11 p u p s based on their phage patterns and groups. The mean maximum interval between the first and last detection of related .I: aunur strains in a group was 11.5 k 7.3 weeks. Amongst composite milk strains of .I: U~~W J , 23 (46.0 "h) of 50, 25 (62.5 Yn) of 40 and 22 (53.7 Yo) of 41 exhibited relatedness on farms IB 2, IB 27 and I(: 23, respectively, but the differences were not staustically significant (P > 0.05; ~3 .On farm IH 2, five groups o f related strains of . C artreus were detected with a mean maximurn interval of detection of 18.2 k 8.5 wecks compared to farm 1B 27 where five groups of related strams were also observed but with an interval of 13.8 8.2 weeks. On farm IC 23, a total of seven groups of related S. u u~u~ strains were detected with a mean interval of 8.0 k 5.5 weeks. For human strains of .C nunus from farm 113 2, nine (56.3%) of 16 strains isolatcd from anterior nares exhibited relatedness in three groups with a mean maximum intcrval of 13.3 k 4.7 weeks compared to four (25.0%) of 16 hand swab isolates which exhibited relatedness in two groups with mean interval of detection of 11.0 1.4 weeks. The differcnccs were not statistically significant (P > 0.05; X-3. On farm IB 27, for anterior nares isolates, eight (72.7%,) of 1 1 exhibited rclatcdness in two groups with a mean maximum interval of detection of 20.5 k 2.1 wecks comparcd tn hand swab isolates, with SIX (50.0%) of 12 showing relatedness in two g r q x and a mean intcrval o f 10.5 f 2.1 weeks.It was conclutled that dairy cows and their human handlers carried particular strains of J, aunns at various sites for cxtcndcd pcriods, which scncd as continuous sources of contamination of milk and may play a sipificant role in thc occurrence nf subclinical masutis, with a n obvious economic impact.

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The basic phage set for typing bovine staphylococci

Cited by 8 publications

References 3 publications

Genomic fingerprints ofStaphylococcus aureusof bovine origin by polymerase chain reaction-based DNA fingerprinting

Genomic fingerprints ofStaphylococcus aureusof bovine origin by polymerase chain reaction-based DNA fingerprinting

Phage typing set for differentiating Staphylococcus epidermidis

Longitudinal Study on the Susceptibility to Bacteriophages of Staphylococcus aureus Strains Isolated from Dairy Farms in Trinidad

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