[A case of severe pneumonia with Q fever].

Q fever, also known as query fever, is a naturally occurring zoonotic disease caused by the bacterium <i>Coxiella burnetii</i>.This paper reported the case of a 37-year-old male patient who developed symptoms of headache, fever, and dyspnea after delivering yaks. Having received ineffective treatment at other medical facilities, he was referred to Tibet Autonomous Region People's Hospital. A diagnosis of Q fever was confirmed through an etiological examination of bronchial lavage sample. The patient was subsequently treated with mechanical ventilation and effective antibiotics. Severe pneumonia resulting from Q fever is relatively uncommon. By detailing the diagnostic and therapeutic processes involved in this case, we aimed to improve the clinicians' understanding of this disease and to reduce the likelihood of misdiagnosis or missed diagnosis.