<unk>  is a viral genus in the family Picornaviridae. The genus is composed of two species: Human<unk>  and Ljungan virus.
Six types of human<unk>  have been identified: human<unk>  1 (formerly echovirus 22), human<unk>  2 (formerly echovirus 23), and human<unk> es 3, 4, 5 and 6, respectively. Human<unk> es cause mild, gastrointestinal or respiratory illness, but have been implicated in cases of myocarditis and encephalitis. Human<unk> es are commonly spread and more than 95% of humans are infected by human<unk> es early in life, within two to five years of age.
The Ljungan virus was first isolated from bank voles (Myodes glareolus, formerly Clethrionomys glareolus). Ljungan virus has been proposed as a zoonotic virus, associated with diabetes and intrauterine fetal death in human. However, the data regarding these features is currently limited and needs to be confirmed.
Parechovirus
Echovirus
Arbovirus
Erbovirus
Poliovirus
Pomovirus
Pithovirus
Enterovirus