Forty percent of infections that might occur during pilgrimage season mainly affect the respiratory system. Therefore, physicians recommend that pilgrims wear medical masks, that should be changed every six hours. These masks prevent the spread of viruses from the mouth of those infected. More details about how to avoid infection are in the following medical report specially prepared for the pilgrimage season. Using medical masks is a precautionary procedure to stop the spread of Bacteria and viruses between pilgrims, especially in crowded places.