Jo Whiley found it "emotional" seeing her sister after she tested positive for COVID-19.
The BBC Radio 2 DJ revealed her sister, Frances - who has learning disabilities and diabetes - tested positive for COVID-19 last week after an outbreak in her care home, and Jo has now said she welled up after spotting her sister waving from her hospital window.
Sharing a video of Frances, she tweeted: "Today we went to drop off a care package at the hospital where Frances has been fighting COVID. Emotional scenes when we were greeted by this little face coming to the window to wave at us. I told you she was special."
Jo's "worst fears" came true when her sister was diagnosed with the respiratory disease, as Frances was "so close" to getting her vaccine.
She said: "Feel like I'm in a terrible film with bad posts. Late last night I got a call to say that Frances, my sister, had tested positive & has COVID. Our worst fears realised after keeping her safe for a year & with a vaccine so close ... she's ok so far ... Everything crossed. (sic)"
Jo also revealed that she has been offered her own coronavirus jab and admits she would give it up "in a heartbeat" to protect her sister.
The 55-year-old presenter said: "I feel like I'm living through a nightmare. The whole weekend has been awful. It's been really, really difficult. And then ironically I got a message to say that I was due to have my vaccine before my sister, who's got learning disabilities and underlying health conditions. I would give up my vaccine in a heartbeat, if I could, for my sister and any of the residents in her house to have their vaccine ... it does not feel right."
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