Proceedings of the National Academy of Sciences of the United States of America, may be valuable in helping people determine the most effective measures to reduce the chances of infection based on the type of venue or event.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.The sudden emergence and rapid spread of COVID-19 has had a devastating effect on the health of millions of people, with over 1.4 million deaths and reports of long-term health consequences for some people who survive the infection.In the absence of a safe and effective vaccine and with limited treatment options, governments across the world have instigated a range of.