Some governments and businesses are starting to use digital and paper passes that certify a person has been immunized against COVID-19, spurring debate over the ethics of vaccine passports.

COVID-19 cases are surging across the United States, forcing Americans to weigh the risks of gathering for the Thanksgiving holiday. How have other countries handled holidays amid the pandemic?

Several countries stand out for their success in delivering coronavirus vaccinations, while most of the world is struggling to figure out how to get immunizations into more arms.

The global distribution of COVID-19 vaccines is underway, but the emergence of new coronavirus strains threatens to make the pandemic far worse before it gets better.

As COVID-19 continues to ravage countries including Brazil and India, scientists warn that cases and deaths are being undercounted. Without accurate tallies, government responses won’t be enough to d…