SARS-CoV-2 VariantSARS-CoV-2 VariantSurveillance in Brazilin Rio Grande do Sul.Study highlights local variant spreadInfectious Diseases (except HIV/AIDS)Tracking SARS-CoV-2 Variants in BrazilStudy reveals significant SARS-CoV-2 variant circulation in Rio Grande do Sul.2025-07-27T11:16:30+00:00 ― 5 min read