SARS-CoV-2 is a new kind of coronavirus that appeared suddenly in late 2019. The disease it causes, called COVID-19, is now ...

The World Health Organization has declared COVID-19 a pandemic. This is a landmark event. As an epidemiologist listening to the steady stream of conversation around the coronavirus, I’m hearing ...

SAN FRANCISCO -- As California becomes the first U.S. state to adopt an "endemic" approach to COVID-19, we take a closer look at what becoming "endemic" means and if virus levels have truly ...

COVID-19 has wreaked havoc across the globe for more than two years. Now, many public health experts are debating whether the virus has transitioned from being a pandemic to being endemic. But what do ...

LONDON (Reuters) - The World Health Organization is considering changing the way it classifies and describes international epidemics, amid a protracted public debate over whether to call the outbreak ...