LONDON — Queen Elizabeth II, who has been battling a cold for more than a week, missed a New Year’s Day church service at her country estate in Sandringham, Buckingham Palace said on Sunday.

A week earlier, the queen, who is 90, missed a Christmas Day church service, for the first time since 1988, because of the illness.

“The Queen does not yet feel ready to attend church as she is still recuperating from a heavy cold,” the palace said in a statement.

The queen’s husband, Prince Philip, who had also been ill, was well enough to attend both services, in the church at Sandringham, which is in Norfolk, on the east coast of England.