Ist es auch Wahnsinn, so hat es doch Methode...
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Pfizer/BioNTech seeks U.S. nod for updated COVID vaccine as booster in kids under 5 | Reuters

Pfizer Inc and its German partner BioNTech SE have applied for emergency use authorization of their Omicron-adapted COVID-19 vaccine in the United States as a booster dose for children aged six months through four years, the companies said on Wednesday. The Omicron-adapted vaccine is currently authorized by the U.S. health regulator as the third dose of the three-dose primary course of vaccination in the country for children in this age group.