Coronavirus Frequently Asked Questions

African nations are bristling at the restrictions imposed on them by rich countries — and say they are harmful to local economies and discriminate against countries in the region.

"This wave seems much faster than the delta wave. And we thought the delta wave was really fast. It's unbelievable," says Juliet Pulliam, the scientist who presented the new analysis at a conference.

Here's what to know about how they work, how effective they are and the impact they could make on the pandemic.

The omicron variant has now been detected in Canada after first being identified in South Africa and then in Europe.

A new strain of COVID-19 labeled a a "variant of concern" by the World Health Organization is giving health official cause for concern.

The policy will go into effect Dec. 1 for city employees and Jan. 3 for contractors.

The court's injunction will be terminated if the deferral option for pregnant students is removed.

The word "vaccine" saw a more than 600% increase in lookups this year over last. In its announcement, Merriam-Webster noted that it's come to represent much more than just medicine.

President Biden said that while restrictions imposed on travelers from several nations in southern Africa would slow the variant's entry, the U.S. will eventually see cases.

The number of COVID-19 patients hospitalized in San Diego County has increased slightly, rising from 248 to 255.