A CDC panel of experts will meet next week to review the cases.
During the briefing Thursday, Walensky said the CDC has asked"clinicians to be on the lookout for and report patients with symptoms of myocarditis or pericarditis following vaccination."
Symptoms can include fever and fatigue, as well as shortness of breath and chest pain. Most cases have not been serious."The vast majority have fully resolved with rest and supportive care," Walensky said. Indeed,"people who have had this side effect tend to have had mild or minimal symptoms that resolve within several days," said Dr. Katie Passaretti, medical director for infection prevention at Atrium Health in Charlotte.
Next week's gathering of experts"is yet another demonstration of our ongoing efforts to keep safety central in everything we do," Walensky said."Getting vaccinated is our way out of this pandemic."