It was reported in other studies that the use of face masks for more than eight hours can lead to a substantial decrease in the incidence of influenza-like illness (ILI) among pilgrims [14,29]. However, the effectiveness depended largely on adherence to mask use [30]. Hoang et al. (2019 and 2020) noted the complexity of the bacterial and viral RTIs [18] and high transmission rates despite preventative measures [19]. Adaptations to accommodation should be considered as the current use of large, single space dormitory style tents has been noted to encourage the spread of viral infections [16,18,19,20].