title: Health conditions for travellers to Saudi Arabia for the pilgrimage to Mecca (Hajj). III. Poliomyelitis. Addendum.
mesh_terms: D006801:Humans; D007514:Islam; D011051:Poliomyelitis / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000627:therapeutic use; D014195:Travel
chemical_list: D023321:Poliovirus Vaccines