US President Donald Trump says the official in charge of the Centers for Disease Control and Prevention (CDC) was confused when he said a coronavirus vaccine could take until the middle of 2021 to be rolled out.

Mr Trump is predicting at least 100 million doses of a coronavirus vaccine could be distributed in by the end of 2020.

Hours earlier, Robert Redfield, director of the CDC, said a COVID-19 vaccine could be broadly rolled out by the middle of next year or a little later.

“No, I think he made a mistake when he said that,” Mr Trump said on Wednesday (local time), telling reporters he’d called Mr Redfield.

“That’s incorrect information. I believe he was confused. I think he just misunderstood the question, probably.”

• Virus vaccine could be weeks away, says Trump

Mr Redfield, head of the federal government’s disease control agency, made his comments in testimony before a US Senate panel.

He said general availability of a vaccine could come by “late second quarter, third quarter 2021”.

A vaccine could be ready as soon as this November or December, Mr Redfield said, adding that limited first doses could go to those who were most vulnerable.

But “in order to have enough of us immunised to have immunity, I think it’s going to take six to nine months”, he added.

-with agencies