A cluster-randomised controlled trial to test the efficacy of facemasks in preventing respiratory viral infection among Hajj pilgrims

by Mandy Wang, Osamah Barasheed, Harunor Rashid, Robert Booy, Haitham El Bashir, Elizabeth Haworth, Iman Ridda, Edward C. Holmes, Dominic E. Dwyer, Jonathan Nguyen-Van-Tam, Ziad A. Memish, Leon Heron
Published 2019-04-01