- Jul 5, 2009
Prince William also had it at the same time as Charles, but chose not to make this public until now:
The Duke of Cambridge is believed to have caught it at a similar time as his father, Prince Charles.
Prince William, second in line to the throne, did not tell anyone about his positive test result because "there were important things going on and I didn't want to worry anyone", according to the Sun.
He was treated by palace doctors and followed government guidelines by isolating at the family home Anmer Hall, in Norfolk, the paper added.
BBC royal correspondent, Jonny Dymond, said Prince William's condition may not have been revealed publicly at the time as they may have wanted to avoid further alarm, given the national mood.