Coronavirus awareness icons - 200 free icons for coronavirus awareness
Covid-19 Design Pack by Artify - Free set of COVID-19 design materials u can edit on the fly
Font Awesome - Font Awesome makes it easy to add vector icons and social logos to your website. And version 5 is redesigned and built from the ground up!
GLYPHICONS Contagion set - Bold icons for tough times
Call the Doctor Illustration Constructor - Healthcare related vector illustrations for digital projects
IconBros - Free and continuously growing high quality icons