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Tetracycline treatment does not eradicate Mycoplasma genitalium
L Falk1, H Fredlund, J S Jensen
1Department of Dermatology and Venereology, Orebro University Hospital, Orebro, Sweden. lars.falk@orebroll.se
Objectives:
To study the treatment efficacy of tetracyclines and azithromycin in Mycoplasma genitalium positive patients attending an STD clinic.
Methods:
All M genitalium positive patients (34 men and 26 women) attending an STD clinic during a 6 month period were treated with antibiotics. All patients known to be partners of M genitalium positive patients and those who were M genitalium positive, but not initially treated, were treated with azithromycin. Patients with urethritis and/or cervicitis were treated with tetracyclines before their M genitalium status was known.
Results:
10 of 14 women (71%) and 10 of 16 men (63%) treated with tetracyclines were M genitalium positive at follow up, whereas all patients treated with azithromycin (16 men and 20 women) were M genitalium negative, at the 4 week follow up visit.
Conclusions:
These results suggest that tetracyclines are not sufficient to eradicate M genitalium. Randomised controlled treatment trials are urgently needed.