Covid-19 vaccine research

How Dolly Parton is 'playing an important role in Covid battle'

In April, Parton announced she was giving the money to Vanderbilt University Medical Center in Nashville.

That was one of the trial sites for the Moderna vaccine, which is nearly 95% effective, according to early data.

A Vanderbilt spokesperson said Parton's "generous" gift was helping "several promising research initiatives".

A portion of the singer's money went towards funding an early stage trial of the Moderna vaccine.

'Very promising research'