Worker felt flushed within 10 minutes of receiving vaccine, followed by shortness of breath and elevated heart rate
COVID-19 Vaccine Caution Issued by U.K. Officials
Warning issued after two people suffered adverse reactions on the first day of the U.K. mass vaccination program
CDC Warns That COVID-19 Vaccine Might Spur Transient Sickness
Some volunteers in trials of candidate vaccines have reported flu-like symptoms after immunization