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==Introduction==

==Introduction==

Rift Valley Fever (RVF) is a viral zoonotic disease belonging to the family ''Bunyaviridae'' in the ''Phlebovirus'' genus, possessing a segmented negative sense RNA genome. The disease has an episodic occurrence remerging ever 5-25 years and is seasonal in its occurrence. The occurrence of non immune animal populations every 5-25years combined with the introduction of RVF (due to rainfall) accounts for the explosive cyclical nature of the disease. RVF primarily affects animals but can infect humans and has the capacity to cause severe disease in both.  

Rift Valley Fever (RVF) is a viral zoonotic disease belonging to the family ''Bunyaviridae'' in the ''Phlebovirus'' genus, possessing a segmented negative sense RNA genome. The disease has an episodic occurrence remerging ever 5-25 years and is seasonal in its occurrence <ref http://www.hpa.org.uk/web/HPAweb&Page&HPAwebAutoListName/Page/1274087829165 /ref>. The occurrence of non immune animal populations every 5-25years combined with the introduction of RVF (due to rainfall) accounts for the explosive cyclical nature of the disease. RVF primarily affects animals but can infect humans and has the capacity to cause severe disease in both.  

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RVF has a wide economic impact due to livestock loss and trade restrictions as well as public health implications. It is a notifiable disease.

RVF has a wide economic impact due to livestock loss and trade restrictions as well as public health implications. It is a notifiable disease.