Table 3.

Prospective evaluation on 1046 respiratory samples^*

Respiratory specimens	n	Coxiella burnetii	Legionella pneumophila	Mycoplasma pneumoniae
Sputa	111	0	18	8
Bronchial aspirates	132	0	7	0
Bronchoalveolar lavage	752	0	9	4
Nasopharyngeal secretions	20	0	0	1
Endotracheal secretions	19	0	3	0
Pleural fluids	12	0	2	0

^*Note that all these 1046 samples have also been tested for Chlamydia pneumoniae, but none were positive [31].