Table 1.

Key characteristics of patient cohort.

	Bacterial infection (N = 25)	Viral infection (N = 30)	Controls (N = 58)
Age, median (range), months	28.4 (8.2–103.4)	9.3 (0.8–156.6)	16.2 (0.12–197.2)
Male, No. (%)	14 (56)	19 (63)	29 (50)
MODS, No. (%)	18 (72)	7 (23)	1 (1.7)
LOS on PICU, median (range), days	6.5 (0.5–26.6)	3.9 (1.7–45.6)	1.3 (0.57–29.4)
Deaths No	1	0	1
Pathogens	Klebsiella pneumoniae (2) Methicillin Resistant Staphylococcus aureus (1) Neisseria meningitidis (11) Pseudomonas aeruginosa (2) Stenotrophomonas maltophilia (1) Streptococcus pneumoniae (4) Streptococcus pyogenes (4)	Adenovirus (2) Coronavirus (2) Herpes Simplex Virus (1) Influenza A (3) Respiratory Syncytial Virus (13) Rhinovirus ( 9) Varicella Zoster Virus ( 1) (1 patient had more than 1 virus)

MODS multiple organ dysfunction patient count, LOS length of stay, PICU paediatric intensive care unit.