A Study of<i>Proteus</i>Infections in a Male Urological Ward

Kippax, P. W.

doi:10.1136/jcp.10.3.211

Cited by 31 publications

(13 citation statements)

References 11 publications

(8 reference statements)

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“…However, Adler et al (2) observed P. morganii in 7.5% of the Proteus infections studied, whereas, in this study, a slightly higher rate of 9.0% was observed. The percentages of P. vulgaris and P. rettgeri seen in this study, 2.4 and 0.9%, respectively, are in agreement with previously reported figures (10,12,21).…”

Section: Resultssupporting

confidence: 93%

“…Such a result indicates that the phage groups demonstrated no trends in their infection patterns and thus were evenly distributed between the two sexes, throughout all age groups and specimen types. DISCUSSION P. mirabilis accounts for between 70 and 96% of all infections due to Proteus (10,12,21). Of the isolates in this study, 87.7% were P. mirabilis, a figure which agrees with those reported by previous investigators.…”

Section: Resultssupporting

confidence: 92%

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Bacteriophage Typing of Proteus mirabilis, Proteus vulgaris, and Proteus morganii

Schmidt¹,

Jeffries²

1974

Applied Microbiology

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A bacteriophage typing scheme for differentiating Proteus isolated from clinical specimens was developed. Twenty-one distinct patterns of lysis were seen when 15 bacteriophages isolated on 8 Proteus mirabilis, 1 P. vulgaris, and 1 P. morganii were used to type 162 of 189 (85.7%) P. mirabilis and P. vulgaris isolates. Seven phages isolated on 3 P. morganii were used to type 13 of 19 (68.4%) P. morganii isolates. Overall, 84.1% of the 208 isolates were lysed by at least 1 phage at routine test dilution (RTD) or 1,000 x RTD. Fifty isolates, retyped several weeks after the initial testing, showed no changes in lytic patterns. The phages retained their titers after storage at 4 C for several months. A computer analysis of the data showed that there was no relationship between the source of the isolate and bacteriophage type. This bacteriophage typing system may provide epidemiological information on strains involved in human infections.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 92%

Bacteriophage Typing of Proteus mirabilis, Proteus vulgaris, and Proteus morganii

Schmidt¹,

Jeffries²

1974

Applied Microbiology

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“…Further evidence to support these hypotheses is found in the marked parallelism in both hospital concentration and incidence of infection of E. coli 04, 06, and .075 and other pathogenic gram-negative rods that are well known for their association with hospital-acquired infections (10)(11)(12). Although it is true that gramnegative pathogens other than E. coli gain access to the urinary tract from extraintestinal sites, a route that has been previously well documented (13,14), these organisms, as well as nosocomial E. coli, appear to possess enhanced epidemiologic virulence. (16) showing that E. coli of 0 groups 4, 6, and 75 are also the chief cause of urinary tract infections in school children, most of whom presumably acquired their infection in the community, would seem to contradict the present study.…”

Section: Resultsmentioning

confidence: 89%

Studies on the Epidemiology of Escherichia coli Infections. IV. Evidence for a Nosocomial Flora*

Kennedy¹,

Plorde²,

Petersdorf³

1965

J. Clin. Invest.

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“…Other methods of typing, serological (Lanyi, 1956;De Louvois, 1969), biochemical (Kippax, 1957;Huang, 1966), bacteriocine typing (Craddock-Watson, 1965), bacteriophage (France and Markham, 1966), and the Dienes method (Story, 1954;Skirrow, 1969) have been described and comparisons between methods have been made (Burke et al, 1970;Tracy and Thomson, 1972). Our comparison of a large number of strains has shown that the resistotyping method shows better differentiation than bacteriocine, bacteriophage, or serological typing.…”

Section: Discussionmentioning

confidence: 99%

Resistotyping ofProteus mirabilisand a comparison with other methods of typing

1974

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SYNOPSIS Resistotyping of P. mirabilis using 10 compounds is reported. The method was tested for reproducibility and specificity and results were compared with those obtained by serological, bacteriophage, and proticine typing methods and the Dienes test. The possible relationship between resistance to the chemicals used in the test and antibiotics was also studied.The method was found to be simple, reproducible, show good specificity, and compare favourably with other typing methods. No linkage between resistance to the chemicals and antibiotic resistance was detected.Proteus mirabilis is a normal commensal of the intestinal tract and can cause bacteraemia and infection of the urinary tract, of wounds, of burns, and of the meninges. The incidence of severe infections due to this organism appears to be increasing (Finland, 1960;Lewis and Feckety, 1969) and outbreaks of infection are occasionally reported (Adler, Burke, Martin, and Finland, 1971 Received for publication 20 March 1974. by the Dienes test (Skirrow, 1969) were selected initially as control strains from a number of routine laboratory isolates. These strains proved to be satisfactory and were used as controls in all the tests. Eighty-nine strains of unknown type isolated from a routine laboratory and 115 other strains of known phage, serological, and proticine type were resistotyped. Strains isolated from the faeces and urine of 18 patients and the umbilicus and faeces of two babies were also typed. MEDIATryptose (Difco)-agar with 0 5 % sodium taurocholate was made up in Tris buffer (BDH) at pH 7-6 and used in all tests. Tryptose agar was used at a concentration 10% higher than recommended by the manufacturer. Triphenyl tetrazolium chloride (TTC) 0-2 % was used as an indicator and was added to the medium with the required chemical. Peptone water (Oxoid) was used for growing strains before inoculation of plates.

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A Study ofProteusInfections in a Male Urological Ward

Cited by 31 publications

References 11 publications

Bacteriophage Typing of Proteus mirabilis, Proteus vulgaris, and Proteus morganii

Bacteriophage Typing of Proteus mirabilis, Proteus vulgaris, and Proteus morganii

Studies on the Epidemiology of Escherichia coli Infections. IV. Evidence for a Nosocomial Flora*

Resistotyping ofProteus mirabilisand a comparison with other methods of typing

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