
F.D.A. Authorizes Updated Covid Booster Shots Targeting Omicron Subvariants
The agency cleared two options aimed at subvariants that are now dominant, hoping to curtail a fall or winter surge.
The Pandemic Erased Two Decades of Progress in Math and Reading
The results of a national test showed just how devastating the last two years have been for 9-year-old schoolchildren, especially the most vulnerable.






