| 1. |
- Holst, Elisabet, et al.
(författare)
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In vitro activities of cefcanel and some other cephalosporins against Pasteurella multocida
- 1989
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Ingår i: Antimicrobial Agents and Chemotherapy. - 1098-6596. ; 33:12, s. 2142-2143
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Tidskriftsartikel (refereegranskat)abstract
- Thirty-five strains of Pasteurella multocida from humans and animals were tested for susceptibility to five cephalosporins by a broth dilution method. Cefcanel showed high activity against all isolates (MIC and MBC, less than or equal to 0.64 micrograms/ml). The corresponding figure for cefaclor and cefuroxime was 2.56 micrograms/ml. Cefadroxil and cephalexin were the least active compounds tested.
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| 2. |
- Miörner, Håkan, et al.
(författare)
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Improved isolation of mycobacteria other than Mycobacterium tuberculosis on isoniazid-containing Lowenstein-Jensen medium
- 1988
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Ingår i: European Journal of Clinical Microbiology & Infectious Diseases. - 1435-4373. ; 7:1, s. 47-49
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Tidskriftsartikel (refereegranskat)abstract
- The benefit of including isoniazid-containing Lowenstein-Jensen medium for primary isolation of mycobacteria was evaluated in 3,726 clinical specimens. This media increased the primary isolation of mycobacteria other than Mycobacterium tuberculosis by 9.2%, facilitated macroscopical reading and aided presumptive identification of the isolated mycobacteria.
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| 3. |
- Petersson, A C, et al.
(författare)
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Evaluation of four qualitative methods for detection of beta-lactamase production in Staphylococcus and Micrococcus species
- 1989
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Ingår i: European Journal of Clinical Microbiology & Infectious Diseases. - 1435-4373. ; 8:11, s. 962-967
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Tidskriftsartikel (refereegranskat)abstract
- Four qualitative methods for the detection of beta-lactamase production in Staphylococcus and Micrococcus species were evaluated and compared with a quantitative macroiodometric reference method. The disc diffusion test with penicillin G and the cloverleaf method could not separate beta-lactamase-positive from beta-lactamase-negative strains. Two applications of the chromogenic cephalosporin test, using uninduced strains and strains grown on blood agar plates, gave a large number of false negative and false positive results. False negative reactions were most common among uninduced strains, while the false positive reactions were most often recorded for Staphylococcus saprophyticus. A high degree of efficiency was recorded for the nitrocefin spot test, using induced strains grown on antibiotic susceptibility agar, and for the starch-iodine plate method. The starch-iodine plate with methicillin as inducer gave the most reliable results.
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| 4. |
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| 5. |
- Reutersward, A, et al.
(författare)
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Variations in binding of mammalian fibrinogens to streptococci groups A, B, C, E, G and to Staphylococcus aureus
- 1985
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Ingår i: Acta pathologica, microbiologica, et immunologica Scandinavica. Section B, Microbiology. - 0108-0180. ; 93:2, s. 77-82
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Tidskriftsartikel (refereegranskat)abstract
- Twenty-eight beta-hemolytic streptococci of groups A, B, E, G and Streptococcus equisimilis as well as four Staphylococcus aureus strains were tested for their ability to bind fibrinogen preparations from different animal species: homo, baboon, rabbit, rat, guinea-pig, dog, horse, pig, cow and sheep. The patterns of binding indicated differences in the structures of the bacterial fibrinogen receptors. There were higher binding levels in streptococci groups A, G, and S. equisimilis than in representative group B and E strains. Considerable differences in the binding capacity were found within streptococci groups A and E. Group C and group G strains showed rather similar patterns and could be further divided into high-level and low-level binding strains. There is no correlation between binding levels of different animal fibrinogen preparations and the strains isolated from corresponding animals. Recent studies by others have shown that resistance to phagocytosis is mediated by fibrinogen-binding in streptococci group A. The existence of similar fibrinogen-binding structures in several streptococcal species indicates an important role with a definite survival value. It also suggests that M or T protein analogues are present in streptococci groups C, G and E.
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| 6. |
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