9/25/2020 JHC COVID Field Testing Protocol 4/9/2020 UPDATED COVID-19 Service Protocol 3/20/2020 JHC Coronavirus Service Protocol 3/17/2020 Coronavirus Customer Update. For more information. CONTACT YOUR JOERNS HEALTHCARE REPRESENTATIVE ... patients, and reputation. Call 800.826.0270 to speak with a Prevent Specialist. The World's First Side-to ....