The term<unk> myelitis is used to identify the disease caused by any of the three serotypes of<unk> virus (P1, P2 and P3).  Most cases of<unk> virus infection are asymptomatic.  For symptomatic cases, two basic disease patterns are described: a minor form which does not involve the central nervous system (CNS), sometimes called abortive<unk> myelitis, and a major form involving the CNS, which may be paralytic or non-paralytic.  According to the ELCPPC classification, the paralytic form of the disease may be classified into: sporadic, epidemic; epidemiologically abnormal; or imported.
Polio classification
Goiter classification
Boil classification
Baltimore classification
Human papillomavirus classification
Mastitis classification
Octane rating
Linitis plastica classification