FDA says vaccines adapted for new variants won’t need lengthy clinical trials
The recommendations call for small trials. That should reatly accelerate the review process at a time when scientists are increasingly anxious about how the variants...
Pfizer’s vaccine works well after one dose, doesn’t always need ultracold storage
Two positive developments for the Pfizer-BioNTech COVID-19 vaccine: A study in Israel showed that it is robustly effective after the first shot, and it was...
As Virus Grows Stealthier, Vaccine Makers Reconsider Battle Plans
Scientific experts are realizing the virus is changing more quickly than once thought, and may well continue to develop in ways that help it elude...
Alaska health worker had a serious allergic reaction after Pfizer’s vaccine
A health worker in Alaska had a serious allergic reaction minutes after getting Pfizer’s coronavirus vaccine Tuesday and was hospitalized overnight. The worker had no...
Trump Administration Officials Passed When Pfizer Offered in Late Summer to Sell the U.S. More Vaccine Doses
Trump administration officials passed when Pfizer offered in late summer to sell the U.S. government additional doses of its COVID-19 vaccine, according to people familiar...