Traction Guest Vaccine Attestation Registry Mitigates COVID-19 Risks, Manages Employees’ Digital Health Credentials and Accelerates the Return-to-Work Traction Guest Vaccination Attestation Registry Demo https://www.businesswire.com/news/home/20201222005152/en/Traction-Guest-Vaccine-Attestation-Registry-Mitigates-COVID-19-Risks-Manages-Employees%E2%80%99-Digital-Health-Credentials-and-Accelerates-the-Return-to-Work