What is bulbar polio?
A paralytic poliomyelitis that results_in destruction located_in motor neurons of brainstem, has_material_basis_in Human poliovirus 1, has_material_basis_in Human poliovirus 2, or has_material_basis_in Human poliovirus 3, which are transmitted_by ingestion of food or water contaminated with feces, or transmitted_by direct contact with the oral secretions. The infection has_symptom difficulty breathing, has_symptom difficulty speaking, has_symptom difficulty swallowing, and has_symptom difficulty chewing.