MDV, I have no issue with ongoing discussion. I
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I have no issue with ongoing discussion. I did not intend that to my message.
To my knowledge, the transmission of Covid, SARS and influenza by respiratory droplets is settled science. The paper you shared does not seem to counter the understanding that Covid is spread in close contact by respiratory droplets, rather that the indirect transmission by fomites and by respiratory generated aerosols remains uncertain under any but ideal conditions for maintenance of virion stability.