Table 2.

Proportion of organisms fully susceptible, fully resistant, and of intermediate susceptibility to each antimicrobial agent

Susceptibility category and isolateProportion (%) of organismsa
PenicillinCefuroximeCefotaximeVancomycin
Fully susceptible
 All VGS (n = 180)68.382.893.3100
S. oralis (n = 60)68.376.793.3100
S. mitis I (n = 44)63.677.386.4100
S. mitis II (n = 10)70.080.090.0100
S. sanguis (n = 43)65.195.397.7100
S. salivarius(n = 18)72.288.994.4100
Intermediate  susceptibility
 All VGS (n = 180)26.17.22.30
S. oralis (n = 60)25.013.300
S. mitis I (n = 44)27.29.14.50
S. mitis II (n = 10)30.0010.00
S. sanguis(n = 43)34.92.400
S. salivarius(n = 18)16.75.65.60
Fully resistant
 All VGS (n = 180)5.68.34.40
S. oralis (n = 60)6.710.06.70
S. mitis I (n = 44)9.115.99.10
S. mitis II (n = 10)020.000
S. sanguis(n = 43)04.700
S. salivarius(n = 18)11.1000
  • a Data are medians of three agar dilution runs.