Federica Giardina, Guglielmo Ferrari, Federica Zavaglio, Stefania Paolucci, Francesca Rovida, Giulia Campanini, Laura Pellegrinelli, Cristina Galli, Elena Pariani, Federica Bergami, Alice Nava, Elisa Matarazzo, Silvia Renica, Diana Fanti, Valeria Cento, Claudia Alteri, Francesco Scaglione, Chiara Vismara, Carlo Federico Perno, Antonio Piralla, Fausto Baldanti
Since the beginning of the pandemic, SARS-CoV-2 has shown genetic variability. All the variants that have sustained pandemic waves have shown several mutations, especially in the Spike protein that could affect viral pathogenesis. A total of 15,729 respiratory samples, collected between December 2020 and August 2022, have been included in this study. We report the circulation of SARS-CoV-2 variants in the Lombardy region, Italy, in a 2-year study period. Alpha, Delta, and Omicron variants became predominant causing the majority of cases whereas Beta or Gamma variants mostly caused local outbreaks...
August 26, 2023: Diagnostic Microbiology and Infectious Disease