NSTworld A new study examining air samples from hospital wards with Covid-19 patients has found the virus can travel up to 13 feet (four metres) – twice the distance current guidelines say people should leave between themselves in public.
The preliminary results of the investigation by Chinese researchers were published on Friday in Emerging Infectious Diseases, a journal of the US Centers for Disease Control and Prevention .
They found that the virus was most heavily concentrated on the floors of the wards, “perhaps because of gravity and air flow causing most virus droplets to float to the ground.” The team also looked at so-called aerosol transmission – when the droplets of the virus are so fine they become suspended and remain airborne for several hours, unlike cough or sneeze droplets that fall to the ground within seconds.
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