Mosquito collections and filarial DNA rates in mosquitoes before and after mass drug administration (MDA).

Filarial DNA was detected in mosquitoes by PCR, and rates (maximum likelihood with 95% CI) were estimated by PoolScreen. The filarial DNA rate in mosquitoes collected in the MDA-3 survey (6 to 9 months after the third round of MDA) represented a 92.3% decrease from the rate in mosquitoes collected during the pre-MDA-B survey (just prior to the first round of MDA).