Scientists have been gathering evidence that the novel coronavirus plaguing the world spreads via aerosol particles practically since it first emerged, and back in July, a group of 200 scientists sent a letter to the WHOurging the international public health agency to change its guidance on the spread of the disease. The problem scientists argued is that the WHO hasn't updated its views to incorporate new research showing that aerosol spread is a much greater threat than touching contaminated surfaces, or via large droplets spread by close contact between individuals.
As soon as we knew it was respiratory and a sphere. At that point it was a done deal, we have an aerosol problem.
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