Estimating the COVID-19 risk during the Hajj pilgrimage Published on 2020-12-232023-07-13 Journal: Journal of Travel Medicine [키워드] COVID-19 Hajj Mass gatherings Pilgrims Risk assessment [저자] Anas Khan, Kingsley Lezor Bieh, Ahmed El-Ganainy, Sujoud Ghallab, Abdullah Assiri, Hani Jokhdar [Category] SARS, PMC URL Pubmed URL [DOI] 10.1093/jtm/taaa157 [Source] pubmed All Keywords 【저자키워드】 COVID-19, Risk assessment, Mass gatherings, Hajj, Pilgrims,