in a study of the safety , acceptability , and efficacy of ivermectin for community-based mass treatment of onchocerciasis , the drug was issued twice , one year apart , to the population of a rubber plantation ( 14,000 people ) in liberia , where over 80 % of the adults have onchocerca volvulus infection .
C0022322
ivermectin
C0029001
onchocerca volvulus infection