In this work we found elevated proinflammatory cytokines IL-6, IL-10, IL-2 and IL-17, and importantly we noted that 12 of 20 COVID-19 severely ill patients and 13 of 20 critically ill patients had lymphopenia (lymphocyte values below 1000/ mL), which coincides with the observations of other authors [46]. Here, IL10 is linked to COVID-19.