https://covid.cdc.gov/covid-data-tracker/#demographicsoverti...
https://www.reuters.com/world/europe/finland-pauses-use-mode...
> Finland on Thursday paused the use of Moderna's COVID-19 vaccine for younger males due to reports of a rare cardiovascular side effect, joining Sweden and Denmark in limiting its use.
https://www.fox19.com/2021/10/07/some-european-countries-sus...
> All three countries based their decision on an unpublished study with Sweden’s Public Health Agency saying that it signals “an increased risk of side effects such as inflammation of the heart muscle or the pericardium” — the double-walled sac containing the heart and the roots of the main vessels. It added: “The risk of being affected is very small.”
For example, from the second link above (Denmark):
> Why are people aged under 50 not to be re-vaccinated?
> The purpose of the vaccination programme is to prevent severe illness, hospitalisation and death. Therefore, people at the highest risk of becoming severely ill will be offered booster vaccination. The purpose of vaccination is not to prevent infection with covid-19, and people aged under 50 are therefore currently not being offered booster vaccination.
> People aged under 50 are generally not at particularly higher risk of becoming severely ill from covid-19. In addition, younger people aged under 50 are well protected against becoming severely ill from covid-19, as a very large number of them have already been vaccinated and have previously been infected with covid-19, and there is consequently good immunity among this part of the population.
Anyone over 12 can get vaccinated and get a booster, but it will be the Pfizer vaccine.
Moderna did reduce its dose for the booster, but its original dose was also 3x that of Pfizer.
That something so obvious was enough to get you labeled a conspiracy theorist and banned off all major social media for close to two years has set back trust in science by decades.