Rift Valley Fever | 疾病管制署傳染病

RiftValleyFever(RVF)iscausedbyRFVvirus,azoonoticvirus(familyBunyaviridaeandgenusPhlebovirus)transmittedbymosquitoesandbloodfeedingflies ...

Background 

Rift Valley Fever (RVF)is caused by RFV virus, a zoonotic virus (family Bunyaviridae and genus Phlebovirus) transmitted by mosquitoes and blood feeding flies that usually affects animals (commonly cattle and sheep) but can also involve humans. Some infected people have no symptoms or mild symptoms such as fever, headache, fatigue, arthralgia and myalgia. Some develop neck stiffness, sensitivity to light, loss of appetite and vomiting. The symptoms usually last from 4 to 7 days. Typically, patients recover within two days to one week after illness onset. However, some patients develop severe symptoms, including ocular disease, meningoencephalitis, hemorrhagic fever, shock, hepatic damage or even death. The case fatality rate is 1%. As most human cases of RVF experience relatively mild symptoms of short duration, no specific treatment is required for these patients. For severe cases, the predominant treatment is general supportive thera...