Top news
NIH clinical trial evaluating mixed COVID-19 vaccine schedules begins
UK approves Pfizer jab for 12 to 15-year-olds
For the first time in over a year, the US records a daily average of fewer than 20,000 new Covid-19 cases
By Christina Maxouris, Holly Yan & Madeline Holcombe
Canada now among top countries for 1st doses of COVID-19 vaccines. So how high can we go?
By Lauren Pelley & Emilie Warren
All coverage
Moderna applies for full FDA approval of its Covid vaccine
By Berkeley Lovelace & Berkeley Lovelace Jr.
Developed Countries Lock Up Covid-19 Vaccines Through 2023
By Jared S. Hopkins
How long do COVID vaccines take to start working?
By Jennifer Juno & Kylie M. Quinn
Moderna Seeks Full F.D.A. Approval for Covid Vaccine
By Daniel E. Slotnik