Table 1.

HRV infection and its frequency in acute and chronic respiratory diseases in adults.

	Frequency (%)	Reference
Exacerbation of asthma	26–36	Nicholson et al. (1993), Tan et al. (2003), Atmar et al. (1998)
Common cold	25–53	Makela et al. (1998), van Gageldonk-Lafeber et al. (2005)
Exacerbation of COPD	3–27	Tan et al. (2003), Perotin et al. (2013), Rohde et al. (2003), Seemungal et al. (2001), Papi et al. (2006), Hutchinson et al. (2007), Ko et al. (2007), McManus et al. (2008), Kherad et al. (2010), Dimopoulos et al. (2012), Beckham et al. (2005)
Community-acquired pneumonia	2–12	Johnstone et al. (2008), Jennings et al. (2008), Lieberman et al. (2010), Johansson et al. (2010), Takahashi et al. (2013), Luchsinger et al. (2013), Huijskens et al. (2014)
Exacerbation of idiopathic pulmonary fibrosis	5	Wootton et al. (2011)
Asymptomatic infection	2	Fry et al. (2011)