A significant association of adverse outcomes in patients with COVID-19 with several laboratory abnormalities has been shown, including lymphocytopenia, anaemia, thrombocytopenia, hypoalbuminaemia, increased neutrophil count, lactic dehydrogenase (LDH), C-reactive protein (CRP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), urea, creatinine, creatine kinase (CK), erythrocyte sedimentation rate (ESR), ferritin, troponin I, D-dimer, interleukin 6 (IL-6), and interleukin 10 (IL-10) levels (8, 9, 10, 11, 12, 13). The gene discussed is IL10; the disease is anemia (phenotype).