Guidelines for In Vitro Production and Quantification of Rift Valley Fever Virus.

Rift Valley fever virus (RVFV) is an arthropod-borne virus (arbovirus) responsible for a severe zoonotic disease affecting a wide range of domestic and wild ruminants as well as humans. RVFV is endemic in many African countries and has also caused outbreaks in Madagascar and Arabian Peninsula. With regard to its wide geographical distribution, its potential to emerge in a new area, and its capability to trigger major health and economic crisis, it is essential to study and better understand several aspects of its life cycle and, in particular, its interactions with mammalian hosts and arthropod vectors. To do so, it is key for researchers to be able to amplify in vitro viral strains isolated from the field and determine accurately the viral titers of RVFV stocks. In this chapter, we present protocols that can be easily implemented to produce and titrate RVFV stocks in your laboratory.