Headline reads, c d c releases international data on risk of mio carditus caused by m n r, m r and a covet 19 vaccines. Second scientists say prolonging the interval between the first and second dose from six to eight weeks may mitigate the risk ofmio quaditis, perry cuaditis, and improve vaccine effectiveness. The relative risk for miro carditis is higher in younger mills, ages 12 to 39. But they claim that it's rare, but we got the data that they release on their own.