As the rollout of vaccines against COVID-19 gathers pace, countries from Sweden to Israel are exploring how certificates and ...

A few weeks ago, my friend called our local pharmacy to ask about getting a Covid-19 booster before an upcoming trip. Sorry, she was told, only people 65 and older or ...

As COVID-19 vaccines are rolled out worldwide, a push for identity proofs and digital certificates risks excluding poorer and vulnerable groups from vaccination and the benefits that come with it, ...

Being infected with COVID-19 may temporarily provide protection against reinfection. However, it's unknown how long that protection lasts and how valuable it is against different variants of the virus ...

Thomas is a native of upstate New York and a graduate of the University at Albany. As a former member of CNET's How To team, he wrote about the intersection of policy, information and technology, and ...