抄録
Since the publishment of Bergey's Manual of systematic Bacteriology in 1986, Streptococcus anginosus, S. constellatus, S. intermedius and S. milleri were classified in the Streptococcus milleri group. This classification has been used in Japan and all over the world.
This time S. milleri group has to be classified according to the hybridization method into sole S. anginosus, From the aspect of clinical bacteriology in Japan, there are differences among S, anginosus, S. constellatus, S. intermedius and S. milleri in MICs of various antimicrobial agents. In these standpoints Bergey's classification of Streptococcus milleri group is still useful for us.
