The clinic said the harm from infection of COVID-19 outweighs the risk of wearing a mask for those with preexisting conditions.
https://www.king5.com/mobile/article/news/health/coronavirus/everett-clinic-to-no-longer-write-mask-wearing-exemption-notes-coronavirus-covid/281-01c48b93-8212-46e6-bfca-ca30f9c3a469