DETROIT Scientists from several countries have learned more about how far droplets from people infected with the coronavirus (COVID-19) can travel in the air. Its now accepted that large droplets from infected people can travel about six feet in the air. Scientists argue there is also evidence that much smaller droplets can hang in the air for longer periods of time, especially indoors. Scientists recommend bringing more outdoor air inside and minimizing recirculating air, particularly in public buildings, work places, schools, hospitals and nursing homes. They also recommend using high efficiency air filters and germ-killing ultraviolet lights and avoiding overcrowding, particularly in public transportation and public buildings.