Investigating the Impact of the Slash and Clear Vector Control Strategy on Blackfly Population and Onchocerciasis Transmission in a Hotspot in Nigeria

Abstract

The Edo–Ondo border remains a hotspot for onchocerciasis transmission and has been designated as a special intervention zone by Nigeria’s National Onchocerciasis Elimination Committee because of its persistent transmission and high blackfly biting rates. This study evaluated the effectiveness of the “slash-and-clear” vector control strategy and annual ivermectin distribution to interrupt transmission of Onchocerca volvulus in the area.