Volume 15, Number 7—July 2009
Dispatch
Lack of Macrolide Resistance in Chlamydia trachomatis after Mass Azithromycin Distributions for Trachoma
Table
Antimicrobial drug susceptibilities of Chlamydia trachomatis, Ethiopia*
Treatment status | Serotype | Azithromycin† |
Doxycycline† |
|||
---|---|---|---|---|---|---|
MIC | MCC | MIC | MCC | |||
4 biannual | A/Har13 | 0.5 | 0.5 | 0.03 | 0.03 | |
Ba/Apache-2 | 0.5 | 0.5 | 0.03 | 0.03 | ||
Ba/Apache-2 | 0.5 | 0.5 | 0.03 | 0.06 | ||
Ba/Apache-2 | 0.25 | 0.5 | 0.03 | 0.06 | ||
Ba/Apache-2 | 0.5 | 0.5 | 0.03 | 0.06 | ||
Ba/Apache-2 |
0.5 |
0.5 |
0.03 |
0.03 |
||
None | A/Har 13 | 0.5 | 0.5 | 0.03 | 0.03 | |
A/Har 13 | 0.5 | 0.5 | 0.03 | 0.03 | ||
A/Har 13 | 0.5 | 1 | 0.015 | 0.06 | ||
Ba/Apache-2 | 0.25 | 0.25 | 0.03 | 0.03 |
*Samples taken in 2006, 18 months after 4 biannual treatments in 2003–2004. MCC, minimum chlamydicidal concentration.
†MIC and MCC values given in μg/mL.