DR GUL DENIZ SALALI COVID-19 is caused by the novel coronavirus (Sars-Cov-2), but coronaviruses have been among us for years. Coronaviruses are a large family of viruses, and different strains (genetic variants) choose different species as their hosts. Many people may have first heard about coronaviruses during the 2002-2004 SARS outbreak, when a strain was…