<unk>  are medium-sized (90-100 nm), nonenveloped (naked) icosahedral viruses composed of a nucleocapsid and a double-stranded linear DNA genome.  There are over 52 different serotypes in humans, which are responsible for 5–10% of upper respiratory infections in children, and many infections in adults as well.
Adenoviridae
Hantavirus
Endornavirus
Arenavirus
Marnavirus
Arbovirus
Coronavirus
Enterovirus