Bhutan vaccinates 93% of its adults in just 16 days

As other countries rolled out their vaccination campaigns over months, the tiny Himalayan kingdom of Bhutan, wedged between India and China, is nearly done just 16 days after it started.

Hit hard by COVID-19 surge, Michigan asks for more vaccine

About 20% of Americans are fully vaccinated, and infections and hospitalizations in seniors are steadily dropping.  Yet, with regional viral hotspots in the Upper Midwest and Northeast, Michigan’s Governor Gretchen Whitner is urging the US to redirect vaccines to hard-hit states like hers.

You got vaccinated. Now, how long will you be protected?

New research shows the Moderna COVID-19 vaccine produces antibodies that persist for 6 months after the second dose of the vaccine. One epidemiologist says the vaccine's protection likely lasts longer than that.

Patchwork of advice emerges on AstraZeneca vaccine

A patchwork of advice is emerging from governments across Europe and elsewhere about the AstraZeneca COVID-19 vaccine. The EU's drug regulator said a "possible link" exists between the vaccine and a rare clotting disorder.

CDC says more contagious UK COVID-19 variant is now the dominant strain in the US

The CDC says a new more contagious variant of the coronavirus is now the dominant strain circulating in the US. The B.1.1.7 variant, which surfaced in the United Kingdom last fall is more transmissible and may cause more severe disease. US health officials say the vaccines could stop the new strain, if the US can get many more Americans protected.