Peter Attia· MD
we've had now three major pandemics caused by coronaviruses in the 21st century you know up until then when I was being trained in microbiology and infectious diseases we knew about corona viruses but they were considered of relatively minor importance they were corona viruses that caused upper respiratory infections and kids and rarely they would cause lower respiratory tract in fact but we had our first really serious experience with a coronavirus in 2003 when SARS one caused the serious pandemic that disrupted the economy of China and Canada and elsewhere another second corner virus occurred in 2012 with Middle Eastern respiratory syndrome that emerged out of Saudi Arabia now it's around 2012 and now this is the third one SARS -