Onchocerciasis in the Cameroon-Chad border area after more than 20 years of annual mass ivermectin distribution.

Although the figures are not directly comparable owing to the fact that the duration of the present study was less than a year (8 months), the difference is still quite significant, given that the present study covered the months known (from historical data from 1984 to 2012) to have the greatest black fly densities in the Vina North River [ 27 ].

also in 5,705 other papers