A statistical study was done on 638 strains of bacteria, isolated from infectious foci on the skin, from 1977-1982 in the Department of Dermatology, Kansai Medical University. The most frequently isolated strain was
Staphylococcus aureus, followed by
Staphylococcus epidermidis and gramnagative bacilli, in this order. There was no great change in the bacterial species isolated during these 6 years. Concerning
Staphylococcus aureus and
Staphylococcus epidermidis, attention was directed to susceptibillity to antibiotics and to single or multiple isolation.
Staphylococcus aureus was often isolated singly, while
Staphylococcus epidermidis was more often isolated from the focus of mixed infection, but has recently increased in cases of single isolation. The susceptibilities of
Staphylococcus aureus to PCG, EM, OL, CLDM, KM, and ABPC decreased gradually during these 6 years, the rate now at less than 50%. In contrast,
Staphylococcus epidermidis showed no great changes, except for PCG and KM.
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