Editorial commentary: missing the forest for the trees: respiratory viral assays in patients with kawasaki disease.

parainfluenza viruses, metapneumovirus, coronaviruses, rhinoviruses, and respiratory syncytial virus, result in prominent upper or lower respiratory symptoms in the absence of the prolonged high fevers that are so characteristic of KD, and these infections are generally not confused with KD. Most of these common viruses circulate at the same time of year when KD cases peak, and therefore some patients with classic acute KD have concurrent infection with one of these viruses.