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What is Which of the following is not included in Picorna group of viruses? and explain in detail?
HEV is not included in Picorna group of viruses. It belongs to Family Caliciviridae. Rhinovirus, HAV and Polio virus belong to the Family Picornaviridae. Characteristics of the Family Picornaviridae: Very small ( pico: measuring small; rna: RNA virus) RNA viruses. The genome consists of a single linear molecule of single-stranded RNA. The family Picornaviridae consists of following genera: Enterovirus: disease in humans. Rhinovirus: disease in humans. Hepatovirus: disease in humans. Apthovirus Cardiovirus Ahrovirus and Cardiovirus : cause foot-and-mouth disease in cattle and meningoencephalomyelitis in mice.