Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has infected 38 million individuals and claimed at least 1 million lives across the globe since it originated in Wuhan, China, in December 2019 (1). While SARS-CoV-2 is highly contagious and lethal, with a case fatality rate of 2.8% based on confirmed cases and deaths to date, different countries have reported varying degree of mortality. We investigated whether such difference in mortality may be explained by obesity, a quiet pandemic that has been striking the globe in the last few decades.
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