How many genera comprise the Flaviviridae family?
['Within a project aimed at discovering new Flaviviridae inhibitors, new variously substituted 2-phenylbenzimidazoles were synthesized and evaluated in cell-based assays for cytotoxicity and antiviral activity against viruses representatives of the three genera of the Flaviviridae family, i.e.: Pestivirus (BVDV), Flavivirus (YFV) and Hepacivirus (HCV).', 'Compounds were tested in cell-based assays against viruses representative of: i) two of the three genera of the Flaviviridae family, i.e. Pestiviruses and Flaviviruses;', 'The RNA-stimulated NTPase activity of this protein from prototypic members of the Pestivirus and Flavivirus genera has recently been established and enzymologically characterized.', 'Compounds were tested in cell-based assays against viruses representative of: i) two of the three genera of the Flaviviridae family, i.e. Flaviviruses and Pestiviruses; ii) other RNA virus families, such as Retroviridae, Picornaviridae, Paramyxoviridae, Rhabdoviridae and Reoviridae; iii) two DNA virus families (Herpesviridae and Poxviridae).', 'Forty-three 2-[(benzotriazol-1/2-yl)methyl]benzimidazoles, bearing either linear (dialkylamino)alkyl- or bulkier (quinolizidin-1-yl)alkyl moieties at position 1, were evaluated in cell-based assays for cytotoxicity and antiviral activity against viruses representative of two of the three genera of the Flaviviridae family, i.e. Flaviviruses (Yellow Fever Virus (YFV)) and Pestiviruses (Bovine Viral Diarrhoea Virus (BVDV)), as Hepaciviruses can hardly be used in routine cell-based assays.', 'Compounds were tested in cell-based assays against viruses representative of: i) two of the three genera of the Flaviviridae family, i.e. Flaviviruses and Pestiviruses; ii) other RNA virus families, such as Retroviridae, Picornaviridae, Paramyxoviridae, Rhabdoviridae and Reoviridae; iii) two DNA virus families (Herpesviridae and Poxviridae).', ': Pestivirus (BVDV), Flavivirus (YFV) and Hepacivirus (HCV).', 'The family Flaviviridae contains three genera of positive-strand RNA viruses, namely, Flavivirus, Hepacivirus (e.g., hepatitis C virus [HCV]), and Pestivirus.']
['The family Flaviviridae is comprised of three genera: Flavivirus, Pestivirus and Hepacivirus.']
['three', '3']