The reasons why those who are susceptible to the disease contract it are still not known, Professor Gotz said, but it is believed some cases are linked to genetic factors.

但是，Gotz教授称研究未找出为何有些人易患上这种疾病，而其他人则不会。但他认为遗传因素也是病源之一。

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The reasons why those who are susceptible to the disease contract it are still not known, Professor Gotz said, but it is believed some cases are linked to genetic factors.

但是，Gotz教授称研究未找出为何有些人易患上这种疾病，而其他人则不会。但他认为遗传因素也是病源之一。

youdao