Caldeira, Maria JoãoPereira, TifanyRodrigues, ÂngelaGonçalves, VivianeMontanha, Maria JoséRodrigues, Carina2023-03-242023-03-242022Caldeira, Maria João; Pereira, Tifany Aline; Rodrigues, Ângela; Gonçalves, Viviane; Montanha, Maria José; Rodrigues, Carina (2022). ABO blood system: infection risk and severity in COVID 19. In VII Encontro de jovens Investigadores (EJI). Bragançahttp://hdl.handle.net/10198/28004Association studies between ABO blood group and COVID 19 risk and severity have shown differences depending on blood group From the serological study, carried out at CIMO in collaboration with the ULSNE, for 343 individuals the ABO phenotype was 40 2 5 0 8 6 and 46 2 for groups A, AB, B and O, respectively No significant differences were found between blood groups and infection These are preliminary results of a study on genetic determinants of susceptibility to SARS CoV 2 infectionporSARS-CoV-2COVID-19ABOSeverityInfectionconference poster