The wild poliovirus epidemic and the spread of vaccine-derived poliovirus in October 2019
Global public health efforts are about to eradicate poliomyelitis by immunizing each child until the transmission of the virus is stopped. Poliomyelitis is caused by poliovirus, which is a positive strand non-enveloped virus that occurs in three distinct serotypes (poliovirus 1, poliovirus 2, and poliovirus 3).
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