If anyone needed a reminder that US health secretary and fervent anti-vaccine advocate Robert F. Kennedy Jr. has no background in science or medicine, look no further than the video he posted on social media Tuesday evening.

In the two-and-a-half-minute clip, Kennedy announced that he is cancelling nearly $500 million in funding for the development of mRNA-based vaccines against diseases that pose pandemic threats. The funding will be clawed back from 22 now-defunct contracts awarded through the federal agency tasked with developing medical countermeasures to public health threats. The agency is the Biomedical Advanced Research and Development Authority (BARDA).

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