Uncleanliness is the root of various diseases.

不注意清洁是各种疾病的根源。

《新英汉大辞典》

Boser has to vaccinate her foxes against various diseases.

博瑟必须给她的狐狸接种预防各种疾病的疫苗。

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The dietary laws are presented by the priests not as a sensible way to avoid various diseases that are caused by the lack of refrigeration in the desert.

祭司们提出的饮食法并不是避免各种疾病的合理方法，这些疾病是由于沙漠中没有冷藏设备造成的。

youdao

The dietary laws are presented by the priests not as a sensible way to avoid various diseases that are caused by the lack of refrigeration in the desert.

饮食教规并不是被祭司们,并不是作为一个规避疾病的方法出现的,这些疾病是由于沙漠地区缺水造成的。

耶鲁公开课 - 旧约导论课程节选

Changes in climatic conditions or various diseases can cause the gradual dying of plant shoots.

CNN: Global warming threatens forests, study says

The project could lead to new understandings of various diseases such as schizophrenia, autism and attention deficit hyperactivity disorder.

FORBES: Magazine Article

The services on offer check your DNA (from a sample of saliva) to determine your risks of contracting various diseases and conditions later in life.

ECONOMIST: Peering into your medical future is risky