Table 1.

Characteristics of the 220 antiretroviral drugs-experienced children living in Bangui according to their virological responses at inclusion and classified as responders (e.g., viral load under the threshold of detection; V+) and nonresponders (detectable viral load; V^–); of the 133 antiretroviral drugs-experienced children living in Bangui classified as nonresponders (detectable viral load; V^–), according to the threshold of virological failure (VF) as defined by the 2013-revised WHO recommendations (e.g., viral load below the threshold of virological failure, 1000 copies/mL, VF^–; viral load ≥ 1000 copies/mL, FV⁺)^[46]; and of the 220 antiretroviral drugs-experienced children living in Bangui according to their therapeutic lines (1st-line or 2nd-line regimens) of antiretroviral treatment as defined by the 2013-revised WHO recommendations for resource-limited settings.^[46]