Abstract
A longitudinal study in 2004 and 2005 detected polyomaviruses WU and KI in 44% and 17% of children with and without respiratory symptoms, respectively, in the Netherlands. In some children both viruses were detected for long periods. In several symptomatic children no other respiratory pathogen was detected.
Highlights
High-throughput sequencing techniques have revealed 2 new polyomaviruses called the WU virus (WUPyV) [1] and KI virus (KIPyV) [2]
In 119 samples (52%), the following nonpolyomavirus respiratory pathogens were detected: rhinovirus (32%); enterovirus (3%); respiratory syncytial viruses A and B (2%); coronaviruses OC43, 229E, and NL63 (17%); influenza viruses A and B (1%); human metapneumovirus (1%); adenovirus (
WUPyV and KIPyV were repeatedly observed as the only detectable pathogen in children with respiratory symptoms, which may suggest that both viruses have pathogenic potential
Summary
High-throughput sequencing techniques have revealed 2 new polyomaviruses called the WU virus (WUPyV) [1] and KI virus (KIPyV) [2]. Every 2 weeks, samples for virus detection were collected regardless of any respiratory symptoms. In 5 episodes WUPyV was the only pathogen detected and might have been responsible for the observed respiratory symptoms. In 2 symptomatic samples positive for KIPyV, no other pathogens were detected.
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