Buckingham Palace announced that Queen Camilla, 77, has a chest infection. According to the BBC, Camilla’s diagnosis has led her to cancel Thursday’s engagements, including her planned appearance at the Field of Remembrance at Westminster Abbey. In the Queen’s absence, the Duchess of Gloucester will represent her for that occasion. Camilla will also miss a Thursday evening reception at Buckingham Palace for Olympic and Paralympic athletes, which will now be hosted solely by King Charles. On doctors’ advice, Camilla will rest at home; however, she still aims to attend special events over the we…