Changing patterns of susceptibility of common bacterial pathogens to antimicrobial agents.

Anti-Bacterial Agents/pharmacology Bacteria/drug effects Escherichia coli/drug effects Haemophilus influenzae/drug effects Hemolysis Humans Immunosuppression Therapy Klebsiella/drug effects Microbial Sensitivity Tests Neisseria gonorrhoeae/drug effects Neisseria meningitidis/drug effects Penicillin Resistance Penicillins/pharmacology Proteus/drug effects Pseudomonas/drug effects Serratia/drug effects Serratia marcescens/drug effects Staphylococcus/drug effects Streptococcus/drug effects Streptococcus pneumoniae/drug effects Sulfonamides/pharmacology Tetracycline/pharmacology

Anti-Bacterial Agents Penicillins Sulfonamides Tetracycline