The company defended its claims of 79 percent efficacy for its coronavirus shot and said it would release more up-to-date trial results within 48 hours.
Author: BENJAMIN MUELLER
Can the World Learn From South Africa’s Vaccine Trials?
Vaccine trials are often done in wealthier countries. Scientists say the South Africa experience proves the value of trials in the global south.
‘There Is, in Britain, a Very Big Silence Around Race’
For Black and mixed-race Britons, Meghan’s description of her family troubles recalled familiar and often painful experiences that rarely get talked about.
One Pfizer dose offers robust protection for those who have had Covid-19, studies find.
Two new pieces of research add strong evidence to the case for giving just a single dose of the Pfizer vaccine to people who have antibodies against the virus.
Vaccines Sharply Cut Coronavirus Hospitalization, UK Studies Show
The Pfizer-BioNTech and AstraZeneca-Oxford vaccines are both effective, and work against the more contagious virus variant in Britain, researchers found.
Early Data Offers Hope on AstraZeneca’s Covid-19 Vaccine
A study from Scotland shows a substantially reduced risk of hospitalization after a single shot. But experts caution more evidence is needed.
U.K. Approves Study That Will Infect Volunteers With Covid
Researchers hope to learn things about how the immune system responds to the coronavirus that would be impossible outside a lab.
U.K. Approves Study That Will Deliberately Infect Volunteers With Coronavirus
Researchers are hoping to learn things about how the immune system responds to the coronavirus that would be impossible outside a lab.