title: Health conditions for travellers to Saudi Arabia for the pilgrimage to Mecca (Hajj).
mesh_terms: D004196:Disease Outbreaks / Q000517:prevention & control*; D018562:Disease Transmission, Infectious / Q000517:prevention & control*; D006801:Humans; D007251:Influenza, Human / Q000517:prevention & control; D007514:Islam; D008585:Meningitis, Meningococcal / Q000517:prevention & control; D011051:Poliomyelitis / Q000517:prevention & control; D012529:Saudi Arabia; D014195:Travel; D014611:Vaccination; D014944:World Health Organization; D015004:Yellow Fever / Q000517:prevention & control