Abbreviations: LOS, length of stay; ICU, intensive care unit; IQR,
interquartile range; Flu, influenza; RV/EV, rhinoviruses/ enteroviruses;
CoV, coronavirus; RSV, respiratory syncytial virus; PIV, parainfluenza
viruses; HMPV, human metapneumovirus; AV, adenovirus.
aIncludes patients reported to have equivocal
detection of influenza A.
bIncludes patients with more than one virus detected.