<div>Researchers have found that genetic selection and recombination could be behind the emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that leads to acute respiratory distress syndrome (ARDS) or COVID-19 disease. This research could explain COVID-19 pandemic and its emergence. The study titled, &ldquo;Emergence of SARS-CoV-2 through recombination and strong purifying selection,&rdquo; was published in the journal Science Advances.</div>