Did early focus on hand washing and not masks aid spread of Covid-19?

Increasing number of scientists believe risk from contaminated surfaces may have been overplayed

From the moment coronavirus reached UK shores, public health advice stressed the importance of washing hands and deep-cleaning surfaces to reduce the risk of becoming infected.

The advice was informed by mountains of research into the transmission of other respiratory viruses: it was the best scientists could do with such a new pathogen.

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