Abstract
Isolates from obstructive abscesses were roughly classified and characterized. Anaerobes were isolated at a slightly greater rate than aerobes.
1) Of the ten species most frequently isolated singly, six were gram-positive and four were gram-negative species. The top four were all gram-positive.
2) Many of the species detected from polymicrobial infection cases were prevalent species which form the so-called “established normal flora.”
3) A study over years of bacterial sensitivity to antibiotics showed a trend of increasing in macrolide-resistance in some species and, during and after 1985, the development of methicillin-resistant Staphylococcus aureus.
