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Pilgrims from Marseille, France, to Mecca: demographics and vaccination status.

A cohort of 461 Hajj pilgrims to Mecca departing from Marseille was surveyed. Most of travelers originated from North Africa and one third were geriatric patients. An overall low rate of vaccination was observed. The proportions of travelers without correct vaccination were 67% for influenza, 70% for tetanus, 75% for diphteria and poliomyelitis, and 87% for pertussis and hepatitis A.