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Evaluation Of New Granada Medium (Modified) For The Antenatal Screening Of Group B Streptococcus*.

Kelly Nigel V.; Garland, Suzanne M.
Pathology - Journal of the RCPA: 1994
doi: 10.1080/00313029400169242
Original Article: PDF Only

: New Granada medium (NGM), modified by the substitution of trimethoprim for methotrexate, was compared to a selective Todd-Hewitt broth (NPC broth) and idrect plating onto Edwards medium for assessment of genital carriage of group B streptococcus in pregnant women. Whilst NGM was found to be less sensitive (85%) than NPC broth (95%) and more sensitive than Edwards medium (67%), its use reduced the direct laboratory cost of screening by approximately 41% and also improved the time to report a result by 24 hrs.

(C) 1994 Royal College of Pathologists of Australasia

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