Queen Elizabeth II has reportedly been advised to keep distance from the Royal Family's favourite school after 118 students reported sick with suspected swine flu.
The Monarch was to attend the opening of a new sports hall at Gordonstoun, in Morayshire, Scotland, which has educated three generations of royalty.
But the event was delayed so that staff could look after the ill pupils, four of whom were confirmed to be suffering from swine flu.
"Staff have to put the health of the pupils first," the Daily Express quoted a spokeswoman for the school as saying.
"There was also concern that so many of the children would miss a very happy occasion," the spokeswoman added.