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发帖数: 4462 | 1 The highly-contagious novel coronavirus that has exploded into a global
pandemic can remain viable and infectious in droplets in the air for hours
and on surfaces up to days, according to a new study that should offer
guidance to help people avoid contracting the COVID-19 illness.
Scientists from the National Institute of Allergy and Infectious Diseases (
NIAID), part of the U.S. National Institutes of Health, attempted to mimic
the virus deposited from an infected person onto everyday surfaces in a
household or hospital setting, such as through coughing or touching objects.
They used a device to dispense an aerosol that duplicated the microscopic
droplets created in a cough or a sneeze.
The scientists then investigated how long the virus remained infectious on
these surfaces, according to the study that appeared online in the New
England Journal of Medicine on Tuesday — a day in which U.S. COVID-19 cases
surged past 5,200 and deaths approached 100. | n*******g
发帖数: 4462 | | f********g
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