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COVID-19 is caused by the SARS-CoV-2 virus, first identified as viral pneumonia, and later became a worldwide pandemic situation in December 2019. At present, there are 3,29,68,853 confirmed cases all over the world and 9,95,836 deaths (27th September 2020; 1.08 pm), USA is first on the list of confirmed and death cases. It can cause ARDS which is the worst-case scenario where the oxygen level is dangerously less and patients are kept under ventilation.
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Vaishak et al. (2020) studied this question.
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