There are fears over how safe Pfizer's COVID vaccine is after two British healthcare workers who were among the first in the world to receive it on Tuesday went into anaphylactic shock hours later, prompting British authorities to tell anyone with a 'severe' allergy to food or medicine not to get it.
The FDA is due to meet tomorrow to discuss green-lighting the vaccine in America after being lambasted for taking a week longer than the Brits to get it off the ground.
As of Tuesday, more than 15million people in the US had been diagnosed with COVID and the total number of deaths since the start of the pandemic reached more than 284,000. That number is expected to climb as a result of Thanksgiving travel and gatherings.
In a preliminary analysis posted online on Tuesday, one group of FDA scientists said it was safe.
Among the 20,000 people who were given the vaccine in Pfizer's global trial, 137 had allergic reactions but so did 111 people who were given the placebo, leading scientists to dismiss it as a potential hazard.