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.

US vaccine rollout off to slow, messy start

The race to vaccinate millions of Americans is off to a slower, messier start than public health officials and leaders of the Trump administration’s Operation Warp Speed had expected.

Texas governor, top health official urge quick vaccinations

In separate statements, Texas Gov. Greg Abbott and state health Commissioner Dr. John Hellerstedt suggested that some hospitals are not moving fast enough in distributing the vaccine to the first rounds of eligible patients.

Novavax begins Phase 3 testing of COVID-19 vaccine candidate

The candidate made by Novavax Inc. is the fifth to reach final-stage testing in the U.S. Some 30,000 volunteers are needed to prove if this vaccine — a different kind than its Pfizer and Moderna competitors — really works and is safe.