Importance of absolute eosinophil count in covid-19 patients

Abstract

Coronavirus 2 (SARS-CoV-2) has created worldwide healthcare problems and strained health resources. Reduced eosinophil levels are one of the unique discoveries that have been discovered in COVID 19 recently. The goal of this study is to establish the association between the mortality in COVID-19 with eosinopenia by retrospectively analysing data from fifty COVID-19 patients with varying illness severity, including moderate, severe, and critically ill. Fifty patients taken from Sree Balaji Medical College and Hospital, of which twenty five critically ill patients and twenty-five having moderate to severe COVID-19 infection at hospital admission were enrolled. After being admitted to the hospital, information on the patient's medical history, clinical symptoms, CT severity score, and outcomes were taken from their medical records. The study concluded that Compared to individuals with moderate and severe disorders, critical illness patients' eosinophil levels were much lower. Eosinophil levels gradually decreasing was found to be a separate factor which has been associated with mortality. Patients with COVID-19 who have eosinopenia have a considerably higher mortality rate. These values can be obtained by simple means such as obtaining peripheral blood, so this is an easy and an effective indicator in monitoring these patients.