Chinese buses provide new evidence of airborne coronavirus spread: a study

Of the 68 passengers on the same bus, 23 were subsequently positive for coronavirus (representative)

Washington:

According to a study released Tuesday, about 24 other passengers were infected with coronavirus in a Chinese bus, which had poor ventilation in China, even though it was not sitting nearby.

Health officials initially ignored the possibility that infectious microdroplets could be released into the air by simply breathing, but experts made the pressure and the evidence accumulated, making a U-turn.

An article published Tuesday in JAMA’s Internal Medicine examines passengers who took two buses in January for a 50-minute trip to a Buddhist event in Ningbo, an eastern city in China, before face masks were routinely used. Investigate the threat of airborne infections by viruses.

The researchers believe that the unidentified passengers had zero patients because they were in contact with people in Wuhan who had an infectious disease at the end of last year.

Scientists have also identified where other passengers sat and tested for viruses. It was confirmed that 23 out of 68 passengers were infected on the same bus.

It is worth noting that people infected with the disease before and after the bus, who are outside the 1-2 meter (3-6 feet) boundary that authorities and experts say may spread the infectious disease droplets. is.

Moreover, when the group went to a religious event, the sick passengers had not yet shown symptoms of illness such as coughing.

The researchers also pointed out that the air conditioner simply recirculated the air in the bus, which may have contributed to the spread of the virus.

“Surveys suggest that SARS-CoV-2 is a highly contagious pathogen in closed environments with air circulation,” they wrote, citing the name of the virus.

“The discovery of potential airborne transmissions has important public health implications.”

Their study, including a diagram showing where each infected passenger sat, was added to evidence of airborne transmission, including a study on how the virus spread between dining room tables in a restaurant in Guangzhou, South China. To do.

(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)

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