Then: Masks for sick people; now: masks for all. Then: 6 ft apart; now: more distance, better. Then: Disinfect broadly; now: disinfect high-touch surfaces.

What we've learned along the way: This graphic explores how COVID-19 guidelines have changed through the course of the pandemic.

The coronavirus is a global challenge the likes of which few of us have ever faced.

That doesn't mean it is unbeatable. It means medical experts and a well-informed community need to work together to slow the spread and keep the vulnerable safe.

At University of Maryland Medical System, our healthcare heroes not only treat COVID patients with courage and compassion, they are vital sources of accurate, up-to-date information about COVID-19 for the communities we serve.

At the same time, our UM School of Medicine researchers are advancing vaccine development and testing new treatments.

Because, after all, we are ... the Home of the Brave