Even for 12-18 year olds, the responsible professionals in many advanced Countries have assessed a favorable vaccine risk/ benefit ratio.
With wrong data. Many doctors are not finding the connection brtween taking a vaccine and dying a few days later because they refuse to consider it.
But the vaccine regulatory agencies around the World, are very much aware of delayed onset effects from vaccines.
That is why reporting systems (including VAERS) and long term monitoring programs have been institutionalized for decades. Even the initial trials are designed to provide early indications of possible long term ll effects.
The EUAs for the vaccines in use, require each to be subject to three independent long term monitoring programs, all currently underway (DOD,VA, and Civilian HMO’s, led by Kaiser Permenente).
They did not just fall off the turnip truck last night.