All front-line health-care workers know they’re at risk. Their concern: How much of that risk is avoidable?Two weeks ago, as a surge of COVID-19 cases loomed, nurse Dawn Kulach worried that she didn’t have the gear she needed to stay healthy and on the job during the worst pandemic in a century.Wary of running out of N95 masks, Virtua Health System was limiting them to workers at its five South Jersey hospitals who were dealing with COVID-19-positive or suspected patients.Knowing that people without symptoms can carry the easily spread virus, Kulach, a medical surgical nurse, asked for...…All front-line health-care workers know they’re at risk. Their concern: How much of that risk is avoidable?Two weeks ago, as a surge of COVID-19 cases loomed, nurse Dawn Kulach worried that she didn’t have the gear she needed to stay healthy and on the job during the worst pandemic in a century.Wary of running out of N95 masks, Virtua Health System was limiting them to workers at its five South Jersey hospitals who were dealing with COVID-19-positive or suspected patients.Knowing that people without symptoms can carry the easily spread virus, Kulach, a medical surgical nurse, asked for...WW…