Table 2.

The aetiology of CAP requiring hospitalisation in children across Europe

Pathogen	Frequency (%)
Respiratory syncytial virus	20–28
Rhinovirus	15–27
Human metapneumovirus	10–13
Adenovirus	4.3–27.0
Mycoplasma pneumoniae	8.0–8.2
Parainfluenza viruses	4.7–7.0
Influenza viruses	6.9–7.0
Streptococcus pneumoniae	4.0–25.3
Haemophilus influenza e	32.6
Moraxella catarrhalis	44.7

The main causative organisms for CAP are listed, with frequency expressed as a percentage. Adapted from Bhuiyan et al ¹² and Jain et al.¹³