High frequency of antiretroviral drug resistance among hiv-infected adults receiving first-line highly active antiretroviral therapy in n'djamena, chad

Antiretroviral drug resistance was evaluated in 88 adults infected with human immunodeficiency virus, most with subtype CRF11-cpx, who had received a first-line antiretroviral regimen for 6 months, in N'Djamena, Chad. A total of 47 patients (53%) had detectable viral load at month 6, and 56 (64%) had at least 1 antiretroviral resistance mutation observed. © 2009 by the Infectious Diseases Society of America. All rights reserved.