More than two-thirds of the 15 million coronavirus vaccines shipped within the United States have gone unused, US health officials said.
It comes as the governors of New York and Florida vowed to penalise hospitals that do not dispense shots quickly.
Medical authorities have confronted widespread distrust of immunisation safety, even among some healthcare workers, owing in part to the record speed with which Covid-19 vaccines were developed and approved.
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It comes as the governors of New York and Florida vowed to penalise hospitals that do not dispense shots quickly.
Medical authorities have confronted widespread distrust of immunisation safety, even among some healthcare workers, owing in part to the record speed with which Covid-19 vaccines were developed and approved.

Majority of Covid-19 vaccines in US left unused
More than two-thirds of the 15 million coronavirus vaccines shipped within the United States have gone unused, US health officials said.