How does Covid-19 become endemic?

It's been two years since Covid-19 crept across the globe, battered the U.S. economy and wreaked havoc on unprepared health-care systems. Today's picture, however, is looking much brighter. Covid-19 cases in the U.S. have dropped dramatically since the fast-spreading omicron variant drove infections to their highest point. With a war chest of vaccines and therapeutics to target the virus, many are beginning to question: Is Covid-19 becoming endemic?