Colistin-oxolinic acid blood agar: a selective medium for the isolation of Gardnerella vaginalis.
نویسنده
چکیده
Colistin-oxolinic acid medium is proposed as a selective isolation medium for Gardnerella vaginalis. The medium is effective in inhibiting staphylococci and gram-negative bacteria while allowing growth of G. vaginalis.
منابع مشابه
Comparison of culture and microscopy in the diagnosis of Gardnerella vaginalis infection.
A comparison was made between human blood agar containing amphotericin B, nalidixic acid and either gentamicin or colistin for the isolation of Gardnerella vaginalis from cases of non-specific vaginitis seen in a clinic for sexually transmitted diseases. The medium containing gentamicin was more inhibitory for non-Gardnerella species, but not sufficiently inhibitory to allow direct plating in t...
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The development and evaluation of a new selective medium (colistin-oxolinic acid-blood agar) for streptococci is described. Streptococci of medical and veterinary importance grew well on the medium. Gram-negative organisms, staphylococci. Bacillus spp., and coryneforms are all inhibited. It was concluded that the medium is valuable for the isolation of streptococci in pure culture from mixed fl...
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The isolation of vaginal yeasts was compared on a selective medium, phosphomolybdic acid agar, and on starch agar, a nonselective differential medium used primarily to isolate Corynebacterium vaginale. The majority of the Candida albicans strains were isolated on starch agar, but the selective medium was required for isolating all yeasts from the greatest number specimens.
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A selective agar plate medium (tannin-treated brain heart infusion agar supplemented with colistin-oxolinic acid) was developed to enumerate tannin-protein complex-degrading Streptococcus bovis in the feces of koalas. This medium was successfully used to enumerate strains from fecal samples but failed to enumerate those from pure cultures.
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A total of 447 cervical or vaginal specimens were inoculated in parallel onto peptone-starch-dextrose (PSD) and Columbia colistin (10 mg/ml)-nalidixic acid (15 mug/ml) (CNA) agar and were incubated for 48 h at 35 degrees C in an atmosphere with 2 to 10% CO2. One hundred (22.4%) of the cultures were positive for Haemophilus vaginalis. Forty-eight of the isolates were recovered from both PSD and ...
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ورودعنوان ژورنال:
- Journal of clinical microbiology
دوره 21 5 شماره
صفحات -
تاریخ انتشار 1985