Pat Dwy, senior administrative assistant, Yale New Haven Health, had a little fun with her own Wizard of Oz-themed mask and her Fourth of July office decorations (note that even Uncle Sam can rock a face mask with style). YNHHS employees, along with patients and others who visit any health system facility, are required to wear masks while in those facilities to help prevent the spread of COVID-19. For more employee photos, and more information about COVID-19 at YNHHS, visit the employee intranet (in network only).