A species of ENTEROVIRUS which is the causal agent of POLIOMYELITIS in humans. Three serotypes (strains) exist. Transmission is by the fecal-oral route, pharyngeal secretions, or mechanical vector (flies). Vaccines with both inactivated and live attenuated virus have proven effective in immunizing against the infection
Leonard Foundation -- Trials, litigation, etc. / http://id.loc.gov/authorities/names/no00092405 http://id.loc.gov/authorities/subjects/sh99001302 : Unforeseen legacies : Reuben Wells Leonard and the Leonard Foundation Trust / Bruce Ziff
Leonard, Harriet, 1792?-1825. : Wicked men ensnared by themselves : A sermon preached, December 16, 1825, in the Second Parish of West Springfield, at the interment of Samuel Leonard, and Mrs. Harriet Leonard, his wife; the former of whom murdered the latter, and then committed suicide. / With an appendix containing an account of the horrid transaction. .
Leonard, Hugh. Au pair man : Drama for students. Volume 24 : presenting analysis, context and criticism on commonly studied dramas / Jennifer Greve and Ira Mark Milne, project editors ; foreword by Carole L. Hamilton