A series of studies found that the Moderna vaccine seemed to be more protective as the months passed than the Pfizer-BioNTech vaccine. Here’s why.
Author: APOORVA MANDAVILLI
John Nkengasong, of the Africa C.D.C., Will Lead PEPFAR
Dr. Nkengasong will be the first person of African origin to oversee the U.S. government program combating H.I.V., which has ravaged the continent.
Covid Vaccine Prompts Strong Immune Response in Younger Children, Pfizer Says
Vaccinated kids aged 5 to 11 showed evidence of protection against the virus, the company said. The data must be reviewed by the F.D.A. before children can be inoculated.
Study of Covid Booster Shot Benefits Fans Debate Over Extra Doses
Independent experts, including government scientists, were skeptical of the research from Israel, which included limited data over a short period.
Most People Don’t Need a Covid Vaccine Booster, New Review Says
The benefits of a third shot for most people are small and are far outweighed by the benefits of using those doses for initial vaccinations, the scientists say.
Health Care in Afghanistan Is Crumbling, Aid Groups Warn
After the Taliban’s takeover, international donors withdrew funds that hospitals and clinics depended on. Now a fourth wave of Covid looms.
The Pandemic Has Set Back the Fight Against H.I.V., TB and Malaria
Prevention and treatment fell in poor countries last year as access to health care declined, according to a new report.
The U.S. Is Getting a Crash Course in Scientific Uncertainty
As the pandemic takes an unexpected direction, Americans again must reckon with twists in scientific understanding of the virus.
How The US is Getting a Crash Course in Scientific Uncertainty Due to the Pandemic
As the pandemic takes an unexpected direction, Americans again must reckon with twists in scientific understanding of the virus.
Vaccine Effectiveness Against Infection May Wane, C.D.C. Studies Find
Federal health officials said the new data justified a campaign of booster shots. But some scientists disagreed, saying not every American needs another dose.