Scientists opposed to offering booster shots to all Americans said data provided by federal health officials wasn’t compelling enough to support the recommendation — some argued boosters could lead to more vaccine-resistant variants.
Thousands of people marched in Paris and other French cities during a fourth consecutive week of protests against COVID-19 entrance requirements and what opponents see as restrictions on personal freedom.
As COVID — especially the Delta variant — surges among the fully vaccinated, Brian Hooker, Ph.D., said the more the variant deviates from the original sequence used for the vaccine, the less effective the vaccine will be on that variant.
ZURICH—Austrian authorities have suspended inoculations with a batch of AstraZeneca’s COVID-19 vaccine as a precaution while investigating the death of one person and the illness of another after the shots, a health agency said on March 7.
