Hajj is the largest annual gathering in the world. Almost three million Muslims attend this spiritual pilgrimage in Mecca, Saudi Arabia. Umrah, a similar pilgrimage, can also be very crowded with pilgrims arriving in Mecca from all corners of the world throughout the year.
Information had been adapted with permission from the PublicHealth Agency of Canada.
All of the materials presented on this website are intended for information purposes only. It is in no way intended to replace professional medical travel consultation by a qualified medical practitioner.