03/04/2020
From Dr Vincent Carroll.
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Hi all,I am very impressed by this video. The purpose of a mask is to contain your aerosol when you sneeze and thereby prevent it spreading to others by droplet spread. This breaks the chain of transmission. It is also of some value in preventing you acquiring Covid-19 by droplet infection. Masks work best if everybody wears one when out of doors as it effectively breaks the chain of transmission by limiting aerosol spread. A 1988 cluster of Legionaries disease in London which led to three fatalities was linked to aerosol transmission over several hundred yards from its source,a water tank on the roof of the BBC building. In certain conditions aerosol transmission of viruses can travel very long distances so beware!
Now that experts suggest that wearing a mask or face covering is helpful against the coronavirus, folks are scrambling to make their own rather than tap into the supply of surgical face masks needeβ¦