Why Covid is primarily airborne

Since last year, several studies have found that the coronavirus SARS-CoV-2 spreads mainly through the air. Yet there have also been other studies, including a recent one funded by the World Health Organization, that have found the evidence inconclusive. Now, a team of experts has looked at available research and published their assessment in The Lancet: that there is strong, consistent evidence that the primary transmission route of SARS-CoV-2 is indeed airborne. What are the implications of the assessment? If transmission is airborne, public health measures would need to take that into account. Measures that focus solely on large-droplet-borne transmission, but fail to treat the virus as predominantly airborne, would leave people unprotected.