Single-dose mRNA Vaccine Effectiveness Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), Including Alpha and Gamma Variants: A Test-negative Design in Adults 70 Years and Older in British Columbia, Canada
Clinical Infectious Diseases (2021) - Comments
pubmed: 34244723  doi: 10.1093/cid/ciab616  issn: 1058-4838  issn: 1537-6591 

Danuta M Skowronski, Solmaz Setayeshgar, Macy Zou, Natalie Prystajecky, John R Tyson, Eleni Galanis, Monika Naus, David M Patrick, Hind Sbihi, Shiraz El Adam, Bonnie Henry, Linda M N Hoang, Manish Sadarangani, Agatha N Jassem, Mel Krajden