Epidemiology of parainfluenza virus types 1, 2 and 3 infections based on virus isolation between 2002 and 2011 in Yamagata, Japan
Article first published online: 29 NOV 2012
© 2012 The Societies and Wiley Publishing Asia Pty Ltd
Microbiology and Immunology
Volume 56, Issue 12, pages 855–858, December 2012
How to Cite
Mizuta, K., Abiko, C., Aoki, Y., Ikeda, T., Itagaki, T., Katsushima, F., Katsushima, Y., Matsuzaki, Y., Noda, M., Kimura, H. and Ahiko, T. (2012), Epidemiology of parainfluenza virus types 1, 2 and 3 infections based on virus isolation between 2002 and 2011 in Yamagata, Japan. Microbiology and Immunology, 56: 855–858. doi: 10.1111/j.1348-0421.2012.00507.x
- Issue published online: 29 NOV 2012
- Article first published online: 29 NOV 2012
- Accepted manuscript online: 5 SEP 2012 06:00AM EST
- Received 19 July 2012; revised 20 August 2012; accepted 29 August 2012.
- acute respiratory infection;
To clarify the epidemiology of viral acute respiratory infections (ARIs), 305 human parainfluenza virus types 1 (HPIV1), 154 HPIV2 and 574 HPIV3 strains were isolated from 16,962 nasopharyngeal swabs obtained between 2002 and 2011 at pediatric clinics in Yamagata, Japan. The total isolation frequency for HPIV1–3 was 6.1%. Unlike HPIV1 infections, HPIV3 showed clear seasonality with yearly outbreaks in the spring–summer season. HPIV2 tended to appear biannually in autumn–winter. Although no reliable techniques for the laboratory diagnosis of these infections have been established, the present results suggest that HPIV1–3 are an important causative agent of ARIs in children.