The BBC Radio 2 presenter had previously shared her concern that she had been offered the vaccine before her sister, who has learning disabilities and diabetes.
On Sunday (21 February), Whiley shared an Instagram video showing her sister waving from the window of her hospital ward.
“Today we went to drop off a care package at the hospital where Frances has been fighting Covid,” she wrote.
“Emotional scenes when we were greeted by this little face coming to the window to wave at us! I told you my sister was special.”
Whiley revealed over the weekend that Frances – who has the rare genetic syndrome Cri du Chat – had been offered the vaccine on Saturday (20 February), after an outbreak of Covid at her sister’s care home in Nottinghamshire.
However, by then it was “too late” and Frances tested positive for coronavirus.