| Literature DB >> 33567359 |
J A Al-Tawfiq1, Z A Memish2, A Zumla3.
Abstract
Entities:
Keywords: COVID-19; Mass gatherings religious events, Hajj; SARS-CoV-2, COVID-19, restrictions, scaleup; Umrah
Mesh:
Year: 2021 PMID: 33567359 DOI: 10.1016/j.tmaid.2021.101986
Source DB: PubMed Journal: Travel Med Infect Dis ISSN: 1477-8939 Impact factor: 6.211