It was, at the time, the biggest recorded outbreak of Rift Valley fever in east Africa.

那时，它是东非有记录的最大的裂谷热暴发。

youdao

More than 25 human samples have proved positive for Rift Valley fever by PCR or ELISA testing.

通过聚合链反应或ELISA酶标法测试，共有超过25例人类样本被证实为裂谷热阳性。

youdao

Human cases of Rift Valley fever (RVF) continue to occur in Sudan, with more than 221 cases reported in the last two weeks.

人间裂谷热病例在苏丹持续增加，过去两周内所通报的病例已超过221起。

youdao

Most human infections with Rift Valley fever are caused by direct or indirect contact with diseased animals.

VOA: special.2010.07.12

The World Health Organization says Rift Valley fever was first discovered in Kenya in nineteen thirty-one.

VOA: special.2010.07.12

Health officials said last week that there were no cases of Rift Valley fever in tourists.

VOA: special.2010.07.12

Meanwhile, floods which affected Africa in late 1997 led to upsurges of cholera, malaria and Rift Valley fever.

CNN: Global warming may harm human health

In California the building of desert based solar power plants has caused outbreaks of valley fever among workers, infected by spores that have emerged from the disturbed soil.

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You know, there was an outbreak of Rift Valley Fever and some rains in the Horn of Africa, and that's a symptom of more rainfall activity out over the Western Indian Ocean.

NPR: Can Climate Change Explain Odd Weather?