{{Virus group/sandbox|ii}}{{#switch:{{lc:{{{1}}} }}
|i=Group I (dsDNA)
|ii=Group II (ssDNA)
|iii=Group III (dsRNA)
|iv=Group IV ((+)ssRNA)
|v=Group V ((−)ssRNA)
|vi=Group VI (ssRNA-RT)
|vi/vii=Groups VI and VII
|vii=Group VII (dsDNA-RT)
}}