Table 3. Additional microbiological tests and outcomes in hospitalized acute Q fever patients.

Microbiological sample collected or test performed	Hospitalized acute Q fever patients (n = 183)	Outcomes
		Negative/not abnormal	Positive
	n (%)	n (%)	n (%)
Sputum sample	42 (23.0)	40 (95.2)a	0 (0.0)
Blood culture	140 (76.5)	138 (98.6)	2 (1.4)b
Mycoplasma pneumoniae serology	123 (67.2)	101 (82.1)	2 (1.6)c
Legionella pneumophila urinary antigen test or serology	103 (56.3)	102 (99.0)	1 (1.0)
Streptococcus pneumoniae urinary antigen test	10 (5.5)	10 (100)	0 (0.0)

^aNo pathogens cultured; in two patients sputum had been sampled which was not suitable for cultivation.

^b Staphylococcus epidermidis (both are probably a contamination of the sample).

^c Mycoplasma pneumoniae antibodies ≥1∶320, 20 additional patients had detectable antibodies: 1∶40 (n = 8), 1∶80 (n = 4), 1∶160 (n = 8).