Professional dancer Katya Jones has tested positive for Covid-19 and this has meant she has been eliminated from the BBC show along with her dance partner, gold-winning Olympic boxer, Nicola Adams.
The pair had made show history by being the first same-sex couple to compete but it has come to an abrupt end after Katya contracted the virus.
Despite being in a bubble so that the show could work within coronavirus restrictions, it has been reported that Katya may have caught the virus "in a sandwich shop" during a break.
Judge Motsi Mabuse is also self-isolating after being forced to make an "urgent" trip to Germany.
She will miss two shows and be replaced by pro dancer Anton Du Beke.
Meanwhile, It Takes Two presenter Rylan Clark-Neal has also been forced to isolate after coming into contact with a confirmed case.
All this has made 60-year-old head judge Shirley worry about her efforts to protect herself from the virus.
Speaking on TalkRadio, she said that she is "nervous" to leave her her home for fear of contracting coronavirus but "absolutely has to".
Shirley said: "We go shopping, touch something, it's on a box, not even necessarily at the BBC. It could be anywhere out there.
"I'm so nervous to go out the front door in case I absolutely have to. So vigilance and hoping you're not one of the ones who get it."
Speaking about how Katya, 31, and Nicola, 38, had to leave the competition early, Shirley said: "I'm absolutely gutted. It's historic, this partnership.
"It was doing so well, and of course we wish them a speedy recovery and that Katya gets better.
"It's too hard to call who could win, but certainly with the dances they had they were going to go far, in my estimation."
Shirley added: "It was just a fantastic team and partnership and they brought light every week. It was fabulous. We wish them both well."
The Sun has reported that BBC bosses are furious about this outcome and a source told that that they feel Katya "must have broken the strict guidelines" and are worried that others on the show are at risk.
Four members of the Strictly crew have been forced to isolate after being in contact with Katya and the source said: "The BBC's top brass are mutinous. It's been drummed into everyone that they need to follow protocol at all times – and some are saying that Katya has clearly broken the rules.
"Katya has been living alone at her flat and people have speculated whether she caught it when she went to grab a coffee and sandwich from shops during a break in training.
"The BBC have since spoken to all the celebs and dancers and they've been told to bring in packed lunches from now on."
Do you have a story to sell? Get in touch with us at firstname.lastname@example.org or call us direct 0207 29 33033.