A user of a poorly ventilated Chinese bus inflated about 20 more passengers with a coronavirus while many were sitting nearby, according to a study published Tuesday that provides new evidence that the disease can spread through the air.
Health officials first ruled out the option that simply breathing can send infectious droplets into the air, but backed off as experts piled up the tension and increased testing.
The article published Tuesday in JAMA Internal Medicine investigates the risk of air infection through a thorough examination of passengers who attended a Buddhist occasion in the eastern Chinese city of Ningbo on two buses in January before the mask became an anti-virus regime. .
Investigators said that a passenger, whose gender was not identified, was probably patient 0 because the user had been in contact with citizens of Wuhan, the city where the contagion gave the impression of expired last year.
Scientists had to map the location of the other passengers and also check them for the virus, and it was later shown that 23 of the 68 passengers were inflamed on the same bus.
What is remarkable is that the disease has inflamed others at the front and back of the bus, outside the perimeter doors of 3 to six feet that the government and experts say infectious droplets can travel.
In addition, the unhealthy passenger still has no symptoms of the disease, such as coughing, when the organization attended a devout event.
Researchers also noted that air conditioning simply recirculated the air inside the bus, which contributed to the spread of the virus.
“Research that in closed environments with air recirculation, SARS-CoV-2 is a highly contagious pathogen,” they wrote, referring to the virus.
“Our discovery of possible air transmission is of importance to public health. “
His study, which includes a diagram showing where each inflamed passenger sits, adds to evidence of air transmission, adding studies on how the virus spreads between customers’ tables at a place to eat in Guangzhou City, southern China.