A CITF-funded study in preprint, not yet peer-reviewed, by Drs. Marc Romney (University of British Columbia), Zabrina Brumme and Mark Brockman (Simon Fraser University), demonstrated that a third dose of an mRNA vaccine significantly enhanced the magnitude and durability of antibody responses, including among adults over the age of 70, who remained COVID-naïve (those who were not infected with SARS-CoV-2).