A mystery virus has reportedly struck down six of the Strictly Come Dancing professionals.1brendAnastacia’s partner Brendan Cole will not appear on Saturday’s show after doctors said he had to rest to avoid contracting pneumonia.

And now Katya Jones, Janette Manrara, Neil Jones, Aljaz Skorjanec and Anton du Beke are said to be suffering flu-like symptoms. A source told The Sun: ‘Preparations for this weekend have been hampered by this horrendous virus sweeping through the pros. ‘Brendan has spent the entire week away from training on doctor’s orders, and won’t be performing on Saturday night’s show.

The insider added: ‘Producers are now concerned some of the other pros could be following in his footsteps. They have to rehearse and dance very intimately. And at the moment they are dropping like flies.’ Ed Balls’ 22-year-old partner Katya – who couldn’t speak on It Takes Two after losing her voice – reportedly took several breaks while struggling during rehearsals.

And DJ Melvin Odoom’s partner Janette, 32, was forced to miss the premiere of Tom Cruise thriller Jack Reacher as she rested on Thursday. Standing in for Brendan to dance with Anastacia will be fellow professional Gorka Marquez, who will perform the moves Brendan choreographed.