CXCL8 and COVID-19: Among those variables that are significantly different only between individuals from 30 to 39 years we found T helper lymphocytes (p = 0.041), naïve T helper lymphocytes (p = 0.027) and IL-8 (p = 0.02), which are decreased in young COVID-19 patients and Th2 lymphocytes which are significantly increased (p = 0.027) (Figure 3A).