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20世纪70年代初,德国一家药企的研究员威廉·坎贝尔博士受邀,随联合国医疗救助小组来到西非进行调查,他和同行们发现,在西非多个国家有几千万人染上河盲症,这种病引发的失明和瘙痒症使患者遭受着极大痛苦,有人甚至因此自杀。遗憾的是,当时没有药物能够治疗这种病。1978年的一个傍晚,坎贝尔正在试验一种杀死动物寄生虫的药,他对着一组数据陷入了沉思,突然想到这种药可以衍生出一种治疗河
In the early 1970s, Dr. William Campbell, a researcher at a pharmaceutical company in Germany, was invited to visit West Africa with the UN Medical Assistance Team. He and his peers found that tens of millions of people in rivers in West Africa have contracted river blindness. The blindness and pruritus caused by this disease has caused great suffering to patients, and some people even committed suicide. Unfortunately, there was no drug at that time to treat the disease. One evening in 1978, Campbell was experimenting with a drug to kill animal parasites. He was pensive about a set of data, and suddenly he thought that the drug could spawn a treatment river.