Since the first cases were detected in China in December, the virus has rapidly spread to every continent except Antarctica.
The United States is the worst-affected country, with more than 7.9 million diagnosed cases and at least 217,700 deaths.
California has the most cases of any U.S. state, with more than 868,000 people diagnosed, according to Johns Hopkins data. California is followed by Texas and Florida, with over 837,000 cases and over 744,000 cases, respectively.
More than 190 vaccine candidates for COVID-19 are being tracked by the World Health Organization, at least 10 of which are in crucial phase three studies. Of those 10 potential vaccines in late-stage trials, there are currently five that will be available in the United States if approved.