News & Perspective

High-level groups and vaccine companies say there's enough vaccine, but several obstacles block doses from getting to low- and middle-income countries.

The next study phase includes examining raw data and stored blood samples.

Stubbornly high levels persist in nations including Thailand and Vietnam as Delta variant activity keeps countries on edge, from Australia to China.

WHO head Tedros urges Moderna and Pfizer to go all out on channeling vaccine supply to COVAX.

Brazil's activity intensified after Carnival, and, unlike its first surge, spikes aren't contained to a few main hot spots.