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. 2006 Jun;50(6):2098–2105. doi: 10.1128/AAC.00198-06

TABLE 6.

Distribution of 112 MDR S. pneumoniae isolates by serogroup/type in 1994 to 1998, 1999 to 2001, and 2002 to 2004

MDR phenotypea No. of MDR isolates/period
Total no. of isolates Serogroup/type (%)
1994-1998 1999-2001 2002-2004
PEN TET ERY CLI 1 9 22 32 19 (31.3), 14 (25.0), 6 (15.6), 15 (15.6), 24 (6.3), 17 (3.1), 23 (3.1)
PEN ERY SXT 2 1 7 10 14 (90.0), 1 (10.0)
PEN TET ERY 9 9 19 (100)
TET ERY CLI SXT 2 5 1 8 6 (75.0), 14 (35.0)
TET ERY CLI CHL SXT 2 2 3 7 6 (71.4), 19 (28.6)
PEN TET ERY CLI SXT 1 2 4 7 6 (57.1), 9 (28.6), 19 (14.3)
PEN TET ERY CLI CHL SXT 2 4 6 23 (50.0), 6 (16.7), 14 (16.7), 19 (16.7)
PEN TET CHL SXT 1 4 5 23 (80.0), 19 (20.0)
TET ERY CLI CHL 3 3 19 (66.7), 6 (33.3)
PEN TET CHL CTX CRO SXT 2 1 3 23 (66.7), 19 (33.3)
ERY CLI CHL SXT 2 2 6 (100)
PEN ERY CLI SXT 1 1 2 14 (50.0), 15 (50.0)
PEN TET ERY CLI CHL CTX CRO SXT 1 1 2 6 (50.0), 23 (50.0)
TET CHL SXT 1 1 6 (100)
TET ERY CHL 1 1 19 (100)
TET ERY CHL SXT 1 1 6 (100)
PEN OFL CIP SXT 1 1 11 (100)
PEN ERY CTX CRO SXT 1 1 14 (100)
PEN ERY OFL CIP SXT 1 1 14 (100)
PEN TET SXT 1 1 14 (100)
PEN TET CHL CTX SXT 1 1 23 (100)
PEN TET ERY SXT 1 1 19 (100)
PEN TET ERY OFL CIP SXT 1 1 14 (100)
PEN TET ERY CHL SXT 1 1 14 (100)
PEN TET ERY CLI CTX SXT 1 1 14 (100)
PEN TET ERY CLI CTX CRO 1 1 14 (100)
PEN TET ERY CLI OFL CIP 1 1 6 (100)
PEN TET ERY CLI OFL CIP SXT 1 1 14 (100)
PEN TET ERY CLI CHL 1 1 23 (100)
Total 17 30 65 112
a

PEN, penicillin; CRO, ceftriaxone; CTX, cefotaxime; TET, tetracycline; ERY, erythromycin; CLI, clindamycin; CHL, chloramphenicol; CIP, ciprofloxacin; OFX, ofloxacin; SXT, trimethoprim-sulfamethoxazole.