Leukocyte differential and cell population data in the evaluation of SARS-CoV-2 and other infections

Background: Cell population data (CPD) are reported as part of leukocyte differentials by Mindray BC 6800Plus analyzer, give information of the size (Neu Z, Lym Z, Mon Z) nucleic acid content (Neu Y, Lym Y, Mon Y) and internal structure (Neu X, Lym X, Mon X) of leukocytes. We evaluated the potential utility of the leukocyte differential and CPD as laboratory indicators for the detection of coronavirus disease 2019 (COVID-19) in patients when admitted to the Emergency Department.