Table 2 Microbiological findings in induced sputum.

	Healthy controls (N = 30)	Mild asthma (N = 53)	Moderate asthma (N = 50)	p value*
Adenovirus	0	0	0
Enterovirus	2 (6.7%)	0	1 (2%)	0.118
RSV	0	0	0
Rhinovirus	2 (6.7%)	5 (9.4%)	8 (16.0%)	0.438
Chlamydia pneumoniae	9 (30%)	10 (18.9%)	8 (16%)	0.304
Mycoplasma pneumoniae	1 (3.3%)	0	0	0.226
Bordetella pertussis	3 (10%)	7 (13%)	3 (6%)	0.561

RSV, respiratory syncytial virus.

*χ² test or Fisher's exact test as appropriate.