A recent study (read below) shows that more heart damage occurs after receiving Moderna's COVID-19 booster than previously believed.
Researchers discovered that about 1 in 35 health care workers at a Swiss hospital who received the mRNA-1273 vaccine had signs of heart injury linked to it. Normally, this level would only be around 1 percent in a healthy population.
According to the study, which was published in the European Journal of Heart Failure, "mRNA-1273 booster vaccination-associated elevation of markers of myocardial injury occurred in about one out of 35 persons (2.8%), a greater incidence than estimated in meta-analyses of hospitalized cases with myocarditis (estimated incidence 0.0035%) after the second vaccination."
Even after 30 days of observation, half of the group experiencing these negative effects still had higher levels of high-sensitivity cardiac troponin T, which indicates hidden heart damage.
Because there hasn't been much research following people...