The study covered the period from mid-December through the end | Alex Berenson

The study covered the period from mid-December through the end of January, when the Omicron variant became predominant. Although many other studies have shown the vaccines are largely useless against Omicron infection in adults after four months, this database makes clear they are even more useless even more quickly for children.

Children 5 to 11 receive a smaller mRNA dose than adolescents and adults, 10 micrograms versus 30 for each shot. It is not clear whether the smaller dose is the reason the shots are even less effective in kids than in adults, or whether children’s immune systems react differently to mRNA at any dose.

Vaccine protection against Covid hospitalization in children under 12 also dropped over time. By the final two weeks of the study, vaccines offered no statistically significant protection against hospitalizations from Covid, though the numbers were very small.

The database covered 365,000 vaccinated children in New York state aged 5-11. The researchers did not mention the negative effectiveness in their discussion of their findings.