Confirming a case of lassa fever would be a big deal.

确认拉萨热病例事关重大。

And sure enough, the test comes back positive for lassa fever.

果然，拉萨热测试呈阳性。

The patient would have to be quarantined to stop others from being infected and kept under close observation, as lassa fever is often deadly.

由于拉萨热通常是致命的，患者必须被隔离以防止其他人被感染，并接受密切观察。

In the 1970s, the CDC first began working in Sierra Leone researching Lassa fever.

70 年代，疾病预防控制中心首先开始在塞拉利昂研究拉沙热。

Considering this sudden fever and their other symptoms, we recall that the patient has recently travelled to West Africa, where an outbreak of Lassa fever was in the news recently.

考虑到这种突然发热和他们的其他症状，我们回忆起患者最近去过西非，最近新闻报道那里爆发了拉萨热。

In 1990, a Nigerian living in Chicago was exposed to Lassa fever on a visit to his homeland, but didn't develop symptoms until he had returned to the United States.

1990年，一个家住芝加哥的尼日利亚人在访问故乡的过程中接触了拉沙热，但是回到美国以后才出现症状。