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. 2007 Sep;40(1):15-8.
doi: 10.1016/j.jcv.2007.07.001. Epub 2007 Aug 13.

A newly reported human polyomavirus, KI virus, is present in the respiratory tract of Australian children

Seweryn Bialasiewicz  1 , David M Whiley, Stephen B Lambert, David Wang, Michael D Nissen, Theo P Sloots
Affiliations

A newly reported human polyomavirus, KI virus, is present in the respiratory tract of Australian children

Seweryn Bialasiewicz et al. J Clin Virol. 2007 Sep.

Abstract

Background: Recently, Allander and co-workers reported the discovery of a new human polyomavirus, KI virus, in respiratory secretions from patients with acute respiratory tract infection (ARTI).

Objective: We examined 951 respiratory samples collected in Queensland, Australia, between November 2002 and August 2003 from patients with respiratory infection, for the presence of the KI virus.

Results: Twenty-four (2.5%) samples were positive for KI virus with 20 (83%) of these from children younger than 5 years. In six (25%) patients KI was co-detected with another virus. Full genome sequencing of three isolates shows a high degree of conservation between the Queensland isolates and the original isolates reported from Swedish patients.

Conclusions: The newly described KI polyomavirus may commonly be found in the respiratory tract of patients with ARTI, particularly children, and results indicate that the virus has global presence.

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Figures

Fig. 1
Fig. 1
Phylogenetic relationships observed in a neighbour-joining analysis in which whole genome sequences from KI polyomavirus strains detected in Queensland children were aligned with Swedish sequences reported by Allander et al. (2007) (GenBank accession numbers EF127906-127908). Data were prepared using BioEdit (version 7.0.5.3), presented on a topology tree that was created using MEGA (version 3.1). Nodal confidence values indicate the results of bootstrap re-sampling (n = 1000). The nucleotide sequences of KI polyomavirus Brisbane 001, 002 and 003 can be accessed in GenBank under EF520287-520289.
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