Name the viruses included in the Enterovirus group of the family Picornaviridae. Describe in detail the morphology, antigenic properties, pathogenesis, and laboratory diagnosis of poliovirus. (20 marks)(2013) Poliovirus — 20 Marks Essay Introduction Poliovirus is an important member of the genus Enterovirus, family Picornaviridae, and is the causative agent of poliomyelitis. It is an important model virus for studying RNA-virus replication and was one of the first human virus