Human Enterovirus, Poliovirus, LM

(+)ssrna virus) +ssrna virus abnormal anterior horn cervical spinal cord degenerative disease enterovirus histopathology human enterovirus infectious disease lm micrograph microorganism microscopic optical microscopy pathogen picornavirales picornaviridae polio poliomyelitis poliovirus positive sense rna virus single stranded ssrna unhealthy viral disease virus