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9、It Originated In China
它起源于中國
Researchers have successfully traced the presence of bubonic plague back to its origins in China, more than 2,600 years ago.
研究人員成功地將鼠疫的歷史追溯到中國--它的起源地，大約2600年前
Different strains of the plague have different bacterial structures. By looking at each strain’s distribution, researchers have traced bubonic plague backward along the Silk Road, isolating 17 different bacterial strains. All these mutations trace back to a single type of bacteria that only started spreading outside of China in the last six centuries, carried by rats on ships leaving Chinese ports.
不同的瘟疫的不同菌株具有不同的細菌結構。通過觀察不同的瘟疫，研究者將黑死病追溯絲綢之路上，隔離17種不同的菌株，這些變異種都來源于一種細菌，這種細菌在最近六個世紀里只在中國傳播過，通過在中國船上的老鼠傳播到世界各地
In 1409, ships carried the plague into East Africa. It also spread outward both east and west, through Europe and through Hawaii. It eventually came to the United States in the late 1800s after an epidemic swept through the Yunnan province.
在1409年，這些船帶著瘟疫到了東非，同時在西部和東部傳播，傳播到了歐洲和夏威夷，最終在云南的一次爆發之后在1800年左右傳播到了美國
