Four Volunteers Who Got Pfizer's COVID-19 Vaccine Developed
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Four people who received Pfizer's coronavirus vaccine in its clinical trial developed Bell's palsy, a form of temporary facial paralysis. The alarming but rare side effect was revealed in a release of detailed data from the FDA ahead of its meeting when regulators will vote on approval.

The four cases of Bell's palsy were the only side effect that the FDA saw as 'imbalanced' with more occurring in the vaccine group than the placebo group, and fewer than 0.5 percent of the trial participants had serious side effects.

Among the four people who developed Bell's palsy, one saw facial paralysis or weakness within three days after they received the shot which returned to normal in about three days after that. A second person developed nine days after receiving the shot, and the others faces grew weak 37 and 48 days after vaccination, respectively. Each of those three recovered from the facial paralysis in 10 to 21 days.

FDA scientists ruled the side effect was not likely caused by the shot, but said they would likely recommend that Pfizer closely monitor recipients for palsy. Bell's palsy can happen to anyone at any time, and its cause is unknown, though viral respiratory infections are considered a risk factor.

Source:
https://www.dailymail.co.uk/health/article-9030943/Four-volunteers-got-Pfizers-vaccine-developed-Bells-palsy.html
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