Within this scenario, high levels of different inflammatory biomarkers, such as D-dimer, C-reactive protein (CRP), Lactate dehydrogenase (LDH), Interleukin 1β (IL1β) or Interleukin 6 (IL6) have been proposed to be associated with the development of cytokine storm and, therefore, with COVID-19 severity, fatality and poor clinical outcomes (Vaninov, 2020; Farid et al., 2021). This evidence concerns the gene IL6 and COVID-19.