Published
Moderna's Covid-19 vaccine Spikevax halted for young people
The Swedish Public Health Agency (”Folkhälsomyndigheten”) has decided to suspend the use of Moderna’s Spikevax vaccine for everyone born in 1991 or later. This is because of signals of an increased risk of side effects such as inflammation of the heart muscle or the sac surrounding the heart (myocarditis or pericarditis respectively).
The risk of being affected, however, is very low. Myocarditis and pericarditis usually resolve on their own, but the symptoms need to be assessed by a doctor. The conditions are most common among young men, in connection with viral infections such as Covid-19.
The risk is greatest within the first four weeks after vaccination, primarily the first two weeks.