For starters on this point, foot-and-mouth disease is still a common ailment among cattle in South America.

首先，口蹄疫在南美洲的牛群中仍然是一种常见的疾病。

Firms get around this by having their new antibiotics approved for more common ailments treatable with existing drugs, such as urinary-tract infections.

公司通过让他们的新抗生素得到批准并用于现有药物可治疗的更常见疾病来规避这一问题，比如尿路感染。

The quandary is all the greater when the disease is unfamiliar, with symptoms that are often mild, at first, and resemble common ailments.

当患者不熟悉这种疾病时，他们的困惑就更大了，因为这种疾病的症状往往在一开始是轻微的，与常见疾病类似。

Kourouma offers traditional medicines to treat common ailments, even if the ailment is fever, one of the first symptoms of the Ebola virus.

库鲁玛通过传统药物来治愈常见疾病，甚至是埃博拉的早期症状之一发烧。