TY - JOUR T1 - Association of the rs2814778 variant in the ACKR1 gene, responsible for the Duffy erythrocyte antigen "null" phenotype, with COVID-19 severity in Southern Brazil JO - einstein (São Paulo) A1 - Góis, Kelly Silvério A1 - Braga, Matheus A1 - Souza, Victor Hugo de A1 - Schavaren, Julyane A1 - Grava, Sergio A1 - Simão, Andréa Name Colado A1 - Visentainer, Jeane Eliete Laguila A1 - Lima Neto, Quirino Alves de SN - 1679-4508 UL - 10.31744/einstein_journal/2026AO1543 VL - 24 Y1 - 2026 PB - Brasil ER -