WASHINGTON (AP) — President Donald Trump hailed as a “medical miracle†the mRNA vaccines developed to combat the deadly COVID-19 pandemic in 2020.

Now, his health secretary , is effectively the vaccine technology’s advancement. Kennedy announced Tuesday that the federal government is canceling $500 million worth of research development contracts, putting an end to U.S.-backed hopes for the vaccine technology to prevent future pandemics, treat cancer or prevent flu infections.

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