盘尾丝虫病是非洲、拉丁美洲和也门等热带发展中国家的地方病。据统计,大约有860万人受到该病威胁,180万人获感染,其中失明与视力损害者有3.4万人。在大草原以外的地区常见无症状感染。尚未确定通过化 Onchocerciasis is a endemic disease in tropical developing countries such as Africa, Latin America and Yemen. It is estimated that about 8.6 million people are at risk of the disease and 1.8 million are infected, of whom 34,000 are blind and visually-impaired. Asymptomatic infections are common outside the prairies. Has not yet been confirmed