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Vaccine Makers Kept $1.4 Billion in Prepayments for Canceled Covid Shots for the World’s Poor

The Drive to Vaccinate the World Against Covid Is Losing Steam

The Drive to Vaccinate the World Against Covid Is Losing Steam

Omicron Prompts Swift Reconsideration of Boosters Among Scientists

Pfizer Will Allow Its Covid Pill to Be Made and Sold Cheaply in Poor Countries

Who Can Make mRNA Vaccines?

Merck Will Share Formula for its Covid Pill With Poor Countries

Covax, a program to distribute Covid vaccines, cuts its 2021 forecast for available doses by a quarter.

The Pandemic Has Set Back the Fight Against H.I.V., TB and Malaria

Vaccine News Gives Hope for Spring, if Enough People Get the Shots

Berry-Flavored H.I.V. Medication Is Ready for Babies

The Pandemic’s Big Mystery: How Deadly Is the Coronavirus?

Dr. Raj Panjabi Goes the Last Mile in Liberia

New Vaccine Could Slow Disease That Kills 600 Children a Day