Antibiotic susceptibilities of AIDS-associated mycoplasmas.
Because mycoplasmas may be a cofactor in the progression of human immunodeficiency virus infection to AIDS, their susceptibilities to antibiotics need to be known in the event that appropriate therapy is required. The mycoplasmas studied were a stock culture strain of Mycoplasma fermentans, two strains of M. fermentans isolated from patients with AIDS, M. fermentans var. incognitus, Mycoplasma penetrans, and Mycoplasma pirum. The antibiotics tested were doxycycline, tetracycline, clindamycin, ofloxacin, erythromycin, azithromycin, and clarithromycin at levels consistent with the attainable levels in serum. By the macrodilution metabolic inhibition method, all six mycoplasma strains were susceptible to doxycycline, tetracycline, clindamycin, ofloxacin, azithromycin, and clarithromycin. M. penetrans was susceptible to erythromycin. The M. fermentans strains and M. pirum were resistant to erythromycin. The macrodilution metabolic inhibition method results showed agreement with the Sensititre Gram Positive MIC Panel results for tetracycline, clindamycin, and erythromycin. MICs of clarithromycin for all six mycoplasma isolates tested were low, indicating susceptibility.
Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115.
S A
SA
Poulin
R E
RE
Perkins
R B
RB
Kundsin
D017088:AIDS-Related Opportunistic Infections / Q000150:complications / Q000188:drug therapy* / Q000382:microbiology; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D006801:Humans; D008826:Microbial Sensitivity Tests; D009174:Mycoplasma / Q000187:drug effects* / Q000302:isolation & purification; D009175:Mycoplasma Infections / Q000150:complications / Q000188:drug therapy* / Q000382:microbiology; D016858:Mycoplasma fermentans / Q000187:drug effects / Q000302:isolation & purification
D000900:Anti-Bacterial Agents