Dr. Asif Saberi gives them a short lecture on how to prepare and encourages everyone to have their shots at least seven days before traveling. He says the Saudi government is doing a lot to protect pilgrims, but "the magnitude of the problem is the magnitude of the numbers of people who attend the Hajj." When it comes to using hand sanitizer and wearing masks, Saberi says he encounters confusion about religious dictates and flu prevention. According to Muslim beliefs, for example, men in a state of pilgrimage should not wear any stitched items or touch alcohol