The Hajj.
Andrea M
AM
Forde
D003441:Crowding; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control* / Q000635:transmission*; D012529:Saudi Arabia / Q000453:epidemiology; D014195:Travel; D057236:Travel Medicine / Q000379:methods; D014611:Vaccination / Q000379:methods
D007252:Influenza Vaccines