From the CDC website, this FAQ on the polio disease and vaccines covers information about vaccine types, scheduling and concerns regarding the vaccine-derived polio virus. National Center for Immunization and Respiratory Diseases, 2014.
NEW STUDY ON AFM AND POLIO A new study concerning acute flaccid myelitis (AFM... More
NEW STUDY ON AFM AND POLIO A new study concerning acute flaccid myelitis (AFM... More