A person on a poorly ventilated Chinese bus infected nearly two dozen other passengers with coronavirus even though many were not sitting close by, according to a study published today.
Researchers say the findings offer fresh evidence the disease can spread in the air. Health authorities had initially discounted the possibility that simply breathing could send infectious micro-droplets into the air, but did a U-turn as experts piled on pressure and evidence mounted.
The article published in JAMA Internal Medicine probes the threat of airborne infection by taking a close look at passengers who made a 50-minute trip to a Buddhist event in the eastern Chinese city of Ningbo aboard two buses in January before face masks became routine against