00467nas a2200109 4500000000100000008004100001100003100042245018400073856007900257300001400336490000700350 2021 d1 aWorld Health Organization 00aProgress in eliminating onchocerciasis in the WHO Region of the Americas: disruption of ivermectin mass drug administration in the Yanomami focus area due to the COVID-19 pandemic uhttp://apps.who.int/iris/bitstream/handle/10665/345665/WER9639-eng-fre.pdf a477–4840 v96