And then even more recently, we have the Middle East Respiratory Syndrome, which is caused by a corona virus, which likely has an animal origin.
近年来出现的中东呼吸综合症是由可能来自动物的冠状病毒引发的。
Crash Course 疫情科学篇
Using genetic techniques we had been developing for years, we helped to uncover the course of Ebola from its animal origins to humans, and the mutations that helped it on its path.