Queen Camilla canceled another public appearance amid an ongoing chest infection—here's what's going on with her health.

Queen Camilla, who recently stepped back from public duties due to a chest infection, took a more relaxed approach to share the news with the public after King Charles and Kate Middleton's cancer announcements.

Queen Camilla will be absent from the kickoff of Qatar Emir Sheikh Tamim bin Hamad Al Thani's visit to the U.K. due to an ongoing chest infection.

Catherine, Princess of Wales has helped the British royal family roll out the red carpet for the Emir of Qatar on the first day of his state visit to the United Kingdom on Tuesday.

Queen Camilla is ill, with her condition worsening in recent days, as she explained during a gathering at Buckingham Palace today (). The 77-year-old revealed that her chest infection—first announced by the palace on November 5—had developed into what was described as a “mild case of pneumonia” and was reportedly contracted after she toured Australia in October.

Queen Camilla is unable to attend the welcome ceremony for the Emir of Qatar’s state visit to the UK, leaving the King to host alongside the Princess of Wales, Kate Middleton.

The Princess of Wales helped welcome the Qatari delegation to Buckingham Palace earlier in the day, but missed the state dinner

Even though her virus has cleared, the Queen says she is still feeling tired and has been advised by her doctors to take more time to recover.