Virus Outbreak

FILE - In this March 3, 2021, file photo, a vial of the Johnson & Johnson COVID-19 vaccine is displayed at South Shore University Hospital in Bay Shore, N.Y. With the U.S. pause of the vaccine, authorities are weighing whether to resume the shots the way European regulators decided to -- with warnings of a “very rare” risk. New guidance is expected late Friday, April 23, after a government advisory panel deliberates a link between the shot and a handful of vaccine recipients who developed highly unusual blood clots. (AP Photo/Mark Lennihan, File)