Health care workers! Please consider signing this petition asking for CDC and the WHO to give clear, evidence-based guidance on masks. Every person who's not infected is one less patient you have to care for during this time. Folks, feel free to share. https://www.medwiser.org/sign-petition-international-physicians-and-health-care-workers-call-on-who-and-cdc-to-reserve-ppe-for-frontline-medical-teams-and-recommend-nonmedical-fabric-face-masks-be-worn-by-public/ …pic.twitter.com/iMPAGmUkOQ