COVID-19 IS A VIRULENT RESPIRATORY PATHOGEN WHICH LATCHES ONTO CELLS SURFACE PROTEINS IN THE NOSE & THROAT, WHICH MAKES ONE COUGH AND SNEEZE. NO-ONE ON EARTH CAN STOP INHALING, SO RESPIRATORY VIRUSES WILL ALWAYS BE AMONG OUR BIGGEST THREATS. AS IN OTHER EPIDEMICS, ORDINARY PEOPLE'S BEHAVIOUR - MASKS AND SOCIAL DISTANCING MADE THE DIFFERENCE. RESPIRATORY RNA VIRUSES MUTATE AND EVOLVE FASTER THAN ANY OTHER PATHOGEN. "SOCIAL DISTANCING IS THE MAGIC INGREDIENT IN CONTROL" - DAVID FISMAN, SARS VETERAN UNIVERSITY OF TORONTO, EPIDEMIOLOGIST