Large-scale screening of asymptomatic for SARS-CoV-2 variants of concern and rapid P.1 takeover, Curitiba, Brazil

To provide a safer environment for individuals working on-site at the Federal University of Paraná, Curitiba, Brazil, we performed a large-scale mass testing SARS-CoV-2 program coupled with variant genotyping using two PCR-based approaches. We observed a fast dominance of the Gamma variant, displacing other variants in less than three months.Article Summary LineCoronavirus variants of concern may use asymptomatic population as silent spreaders to perform a fast displacement of previous established strains.