articulavirales articulavirales articulavirales is an order of segmented negative-strand rna viruses which infect invertebrates and vertebrates. it includes the family of influenza viruses which infect humans. it is the only order of viruses in the monotypic class insthoviricetes. the order contains two families and eight genera. articulavirales influenza virus particle and life cycle virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: negarnaviricota class: insthoviricetes order: articulavirales families amnoonviridae orthomyxoviridae etymology the order name articulavirales derives from latin articulata meaning "segmented" (alluding to the segmented genome of member viruses) added to the suffix for virus orders -virales. the class name insthoviricetes is a portmanteau of member viruses "influenza, isavirus, and thogotovirus" added to the suffix -viricetes for virus classes. genome member viruses have segmented, negative-sense, single-stranded rna genomes. classification the order articulavirales contains two families and eight genera: amnoonviridae tilapinevirus orthomyxoviridae alphainfluenzavirus betainfluenzavirus deltainfluenzavirus gammainfluenzavirus isavirus quaranjavirus thogotovirus