Feds ‘Very Concerned’ About AstraZeneca Vaccine Side Effect

The Food and Drug Administration is weighing whether to follow British regulators in resuming a coronavirus vaccine trial that was halted when a participant suffered spinal cord damage, even as the National Institutes of Health has launched an investigation of the case. “The highest levels of NIH are very concerned,” said Dr. Avindra Nath, intramural clinical director and a leader of viral research at the National Institute for Neurological…