Blood group O is associated with post-COVID-19 syndrome in outpatients with a low comorbidity index.
Sara Díaz-SalazarRaquel NavasLaura Sainz-MazaPatricia FierroMeryam MaamarArancha ArtimeHéctor BasterrecheaBenedetta PetittaStefanie PiniJosé-Manuel OlmosCarmen RamosEmilio ParienteJose Luis Hernández-HernándezPublished in: Infectious diseases (London, England) (2022)
Group O has shown a consistent relationship with PCS, characterised by a more intense inflammatory burden than the other blood groups. Blood group O could be part of the immunological link between acute COVID-19 and PCS.