Mir Monir Hossain
The symptoms of COVID-19 viral disease, generally ranging from mild to moderate flu-like conditions to critical situation connected with acute respiratory distress syndrome and cytokine storm with decreased adaptive immune response, portending high morbidity and mortality. On 31 December 2019, a newly emerged pneumonia caused by a novel coronavirus, named SARS-CoV-2, was announced by China [1]. It spread out so rapidly until WHO announced coronavirus 2019 disease (COVID-19) as a pandemic condition on 11 March 2020
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