title: Risk factors for H1N1 influenza complications in 2009 Hajj pilgrims.
authors.forename: Philippe
authors.initials: P
authors.lastname: Gautret
authors.forename: Philippe
authors.initials: P
authors.lastname: Parola
authors.forename: Philippe
authors.initials: P
authors.lastname: Brouqui
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003140:Communicable Disease Control / Q000458:organization & administration; D003625:Data Collection; D005260:Female; D005602:France; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000150:complications / Q000517:prevention & control* / Q000635:transmission; D007514:Islam; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012529:Saudi Arabia; D014195:Travel; D055815:Young Adult