Among the adverse side effects of the coronavirus vaccination is the risk of myocarditis, an inflammation of the heart muscle.
Thus, for the 3rd dose, the Moderna vaccine, Spikevax was only recommended for people over 30, the risk being higher in younger people.
Epi-Phare carried out a study on the effect of this third dose on the risk of myocarditis, in France. It shows that “the risk of myocarditis is increased during the first week following the administration of the 3rd dose, but with a lower risk for the 3rd compared to the 2nd. »
This risk was present with both Moderne’s and Pfizer’s vaccines. And it is men under 30 who are mainly targeted.
Epi-Phare also points out that the risk of myocarditis decreases with the lengthening of the time between successive doses. And to conclude: “Myocarditis associated with mRNA vaccines remain infrequent events with regard to the number of people exposed. »