The Food and Drug Administration (FDA) on Monday announced a new warning for the Johnson & Johnson coronavirus vaccine, saying the shot has been linked to a serious but rare side effect called Guillain-Barré syndrome, in which the immune system attacks the nerves, reports The Washington Post.
About 100 preliminary reports of Guillain-Barré have been detected in vaccine recipients after the administration of 12.8 million doses of Johnson & Johnson vaccine in the United States, according to a companion statement from the Centers for Disease Control and Prevention (CDC), which monitors vaccine safety systems with the FDA.
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