Table 3.

Pooled prevalences by virus and upper versus lower respiratory airways.

Virus	Number of studies	Pooled prevalence [95%-CI*]	Upper respiratory airways [95%-CI*]	Lower respiratory airways [95%-CI*]
Adenovirus	11	2.07 [1.41–3.01]	0.34 [0.07–1.03]	3.94 [2.64–5.82]
Bocavirus	2	0.56 [0.00–3.41]	0.00 [0.00–3.35]	0.56 [0.00–3.41]
Coronavirus	8	4.08 [3.04–5.45]	4.80 [3.53–6.49]	1.12 [0.40–2.68]
Epstein–Barr virus	1	47.79 [39.58–56.13]
hMPV**	9	2.78 [1.95–3.93]	1.84 [1.11–2.99]	2.96 [1.82–4.72]
Influenza	14	7.83 [6.55–9.33]	5.43 [4.25–6.91]	9.88 [7.71–12.58]
Parainfluenza	12	3.35 [2.52–4.44]	2.19 [1.47–3.23]	4.60 [3.10–6.72]
Rhino-/enterovirus	14	16.39 [14.58–18.38]	13.50 [11.67–15.57]	16.50 [13.74–19.69]
RSV***	14	9.90 [8.46–11.56]	9.02 [7.49–10.83]	11.93 [9.54–14.81]

^*95%-CI = 95%-confidence interval.

^**hMPV = human metapneumovirus.

^***RSV = respiratory syncytial virus.