Eric Walker added New York declares state of emergency over polio - BBC News to New York and Poliovirus

Eric Walker added Poliovirus - Wikipedia to Poliovirus

Eric Walker added Polio vaccine - Wikipedia and The Last Time a Vaccine Saved America | The New Yorker to Polio vaccines, and added Polio vaccines to Vaccines and vaccination and Poliovirus

Eric Walker added a number of links to Polio, and added Polio to Neurological diseases and disorders, Poliovirus and Infectious disease (ID)

Eric Walker added Poliovirus to Enterovirus C, and added Enterovirus C to Enterovirus

Eric Walker added Polio and Polio vaccines and New York declares state of emergency over polio - BBC News and Poliovirus - Wikipedia to Poliovirus, and added Poliovirus to Enterovirus C