Support for mask wearing is growing rapidly. The Artificial Intelligence Company fast.ai has published an excellent post that lays out in a clear way some of the scientific research that supports the use of face masks to fight Coronavirus.
A particularily clear illustration is made by the infection rates of two Countries: European neighbours Austria and Czechia. They both implemented social distancing on the same day but Czechia went a step further and introduced mandatory mask wearing.
Tonbridge school has used the instructions on https://make-more-masks.com/ to create thousands of visors to distribute to hospitals, GPs, remote assessment centres, care homes, almshouses and an optician.
A report in Nature Magazine gives strong evidence that face masks are effective in reducing transmission of Coronavirus.
The scientists selected a sample of 246 volunteers, half of whom had coronavirus, influenza or rhinovirus. They split this group into two and gave one of the groups facemasks. Breath samples were then collected from each person.
The results clearly show the benefits of face masks:
We detected coronavirus in respiratory droplets and aerosols in 3 of 10 (30%) and 4 of 10 (40%) of the samples collected without face masks, respectively, but did not detect any virus in respiratory droplets or aerosols collected from participants wearing face masks