Influenzavirus C is a genus in the virus family Orthomyxoviridae, which includes those viruses which cause influenza. The only species in this genus is called "Influenza C virus".
Influenza C viruses are known to infect humans and pigs, giving them influenza. Flu due to the type C species is rare compared to types A or B, but can be severe and can cause local epidemics.
Types A and B have 8 RNA segments and encode at least 10 proteins. Subtype C has 7 RNA segments and encodes 9 proteins.
cutn/syst (hppv/hiva, infl/zost/zoon)/epon
drug (dnaa, rnaa, rtva, vacc)
anat (n, x, l, c)/phys/devp
noco (c, p)/cong/tumr, sysi/epon, injr
proc, drug (R1/2/3/5/6/7)