Selective medium for the isolation of streptococci from clinical specimens.
نویسندگان
چکیده
Incorporating neomycin and nalidixic acid into a blood-agar base resulted in a medium highly selective for beta-hemolytic streptococci under conditions in which detection of streptococcal colonies by conventional means would have been very difficult.
منابع مشابه
Effects of selective media and atmosphere of incubation on the isolation of group A streptococci.
The effects of selective media and atmosphere of incubation on the isolation of group A beta-hemolytic streptococci were evaluated. Sheep blood agar medium with gentamicin (2.5 or 5.0 mug/ml) was inferior to antibiotic-free sheep blood agar medium. This resulted from the partial restriction of group A streptococcal growth on gentamicin medium. Recovery of beta-hemolytic streptococci from specim...
متن کاملGroup B streptococci in venereal disease clinic patients.
The isolation rates of group B streptococci for 457 men and 300 women attending a venereal disease clinic were 16-4 and 20-6% respectively. The frequencies were significantly increased by using a selective medium and by taking specimens from the female urethra as well as the cervix. In contrast to gonorrhoea the presence of group B streptococci could not be related to promiscuity. In addition, ...
متن کاملColistin-oxolinic acid-blood agar: a new selective medium for streptococci.
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...
متن کاملRapid isolation and identification of group B streptococci from selective broth medium by slide co-agglutination test.
Direct identification of group B streptococci from a selective broth medium was performed with the Phadebact streptococcus test to determine the feasibility of this technique for early detection of streptococcal colonization. Of 124 clinical isolates, 122 (98.4%) were correctly identified in less than 24 h from the selective broth medium, whereas standard cultures from blood agar plates identif...
متن کاملSelective broth medium for isolation of group B streptococci.
A selective medium containing Todd-Hewitt broth, sheep blood, nalidixic acid, and gentamicin sulfate was found to enhance significantly the isolation of group B streptococci from vaginal cultures. Preparation of the medium, which is stable for up to 4 weeks at 4 C, is simple and inexpensive. Use of such a medium should facilitate identification of vaginal colonization with group B streptococci.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Applied microbiology
دوره 22 5 شماره
صفحات -
تاریخ انتشار 1971