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, Fred Eugene, 1866-1922. : The life of Fred Eugene Leonard, M.D. : his contributions and influence on the profession of physical education / by Fredrick Davis Shults
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
Leonard N. Stern School of Business. / http://id.loc.gov/authorities/names/nr89009133 : New York University's Stern School of Business : a centennial retrospective / Abraham L. Gitlow
Leonard, Samuel, 1788-1825. : 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. ..
Leonardo Art Shop (Melbourne, Vic.) : A touch of Montparnasse : three book shops as avant garde cultural centres in Victoria, the Book Lovers', the Leonardo and the Book Nook / by Laurel Clark
