Slow Spread of SARS-CoV-2 in Southern Brazil Over a 6-Month Period: Report on 8 Sequential Statewide Serological Surveys Including 35611 Participants

Hallal PC, Silveira MF, Menezes AMB, Horta BL, Barros AJD, Pellanda LC, Victora GD, Dellagostin OA, Struchiner CJ, Burattini MN, Mesenburg MA, Jacques N, Vidaletti LP, Ambros EL, Berlezi EM, Schirmer H, Renner JDP, Collares K, Ikeda MLR, Ardenghi TM, Gasperi P, Hartwig FP, Barros FC, Victora CG. Slow Spread of SARS-CoV-2 in Southern Brazil Over a 6-Month Period: Report on 8 Sequential Statewide Serological Surveys Including 35611 Participants. 2021; 111(8): 1542-1550.