COVID-19 timeline: How the pandemic unfolded over 1 year

The challenging months brought death, sickness, disruption and scientific exploration to the forefront of our lives, and many call it both the shortest and the longest year in history — and one that will certainly not be forgotten.

AstraZeneca plans to deliver vaccine trial data by year's end

AstraZeneca hopes to show its COVID-19 vaccine is effective by the end of this year and is ramping up manufacturing so it can supply hundreds of millions of doses in January, Chief Executive Pascal Soriot said Thursday.