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Improved detection of Streptococcus pneumoniae in middle-ear fluid cultures by use of a gentamicin-containing medium
1Clinical Microbiology Laboratory, Soroka Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Journal of Clinical Microbiology
|September 17, 1999
Abstract:
The performance of Columbia agar medium with added sheep blood and gentamicin (CAG) for isolation of Streptococcus pneumoniae from middle-ear fluid cultures was compared to that of routine blood agar medium (BA). Of 238 pneumococcal isolates recovered, CAG plates detected 233 (97.9%) but BA plates detected only 208 (87.4%) (P < 0. 001).