The scientific journal Nature has urged the World Health Organization and national public health authorities to turn their attention to the air in the fight against Covid-19, rather than surfaces.

The scathing editorial published yesterday came amid growing consensus that the virus is airborne and spreads primarily through droplets and aerosols.

Transmission through contaminated surfaces now is thought to be plausible, but rare, and the journal said authorities should keep up with the science and issue clear and updated guidance.

“Now that it is agreed that the virus transmits through the air, in both large and small droplets, efforts to prevent spread should focus on improving ventilation or installing rigorously tested air purifiers...