Queen Elizabeth and her husband Prince Philip have "heavy colds."
Prince Philip and Queen Elizabeth
The 90-year-old monarch and her spouse have decided not to travel to their Sandringham Estate in Norfolk, England - where they usually celebrate the festive season - because they've both been attacked by the virus and have decided to rest up.
A spokesperson for Buckingham Palace said: "The Queen and the Duke of Edinburgh have heavy colds, and so have decided not to travel to Sandringham today."
The queen and the 95-year-old duke were initially scheduled to travel to King's Lynn on Wednesday (21.12.16) and then make their way to their lavish country house.
It's not yet known whether they're planning to travel up before Christmas (25.12.16) or whether the couple will now celebrate the festive season at Buckingham Palace.
But the royal pair won't be alone as their grandson Prince Harry - the son of Prince Charles - has agreed to tuck into a delicious dinner with them on Sunday.
His brother Prince William, on the other hand, won't be around this year as him and his wife Duchess Catherine have decided to take their children Prince George, three, and 19-month-old daughter Princess Charlotte to her parents home. It will be the couple's first Christmas away from Sandringham since George and Charlotte were born.
Tagged in Prince Philip Queen Elizabeth