It is a bunyavirus, related to Rift Valley fever and hantaviruses.
New York Times(Sep 05, 2016)
But the pathogen, a bunyavirus, is still something of a mystery.
Science Magazine(Mar 18, 2011)
From these samples, Chinese CDC virologist Li Dexin and colleagues isolated 11 strains of the bunyavirus.
Science Magazine(Mar 18, 2011)