Moderna Inc (NASDAQ: MRNA) says there is no “causal association” between its COVID-19 vaccine and cases of myocarditis or pericarditis, based on a review of safety data. The Centers for Disease Control and Prevention (CDC) has identified 216 cases of heart inflammation after the first dose of an mRNA shot and another 573 cases after the second dose, Bloomberg reported. The median age of people with myocarditis or pericarditis following the first dose was 30 and 24 in the second-dose cases. There