首先，白血病，淋巴瘤和骨髓瘤是不传染的。

First, leukemia, lymphoma and myeloma are not contagious.

youdao

而且它是不传染的，所以你不会从其他人身上传播到这种疾病。

Because it is not contagious, you can't catch ALS from someone who has the disease.

youdao

当今世界，战争、恐怖主义，经济危机和大规模爆发的传染性疾病等威胁和未知因素层出不穷，人类能否在这样一个环境中享受和平生活？

Is it possible to enjoy a peaceful life in a world that is increasingly challenged by threats and uncertainties from wars, terrorism, economic crises and a widespread outbreak of infectious diseases?

youdao

It worked for them, they didn't have all these chronic diseases like we have, now they had other challenges, infectious diseases primarily, but they didn't have the chronic diseases like we have, like cancer, heart disease, hypertension, hyperlipidaemia, etc., and Diabetes particularly.

这曾对祖先们奏效,他们不像我们会得一些慢性疾病,但他们要面对其他的挑战,主要是传染性疾病,但他们不像我们那样受着慢性疾病的困扰,如癌症,心脏病,高血压和高脂血等,特别是糖尿病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选