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Substitution in position 222 of haemagglutinin of pandemic influenza A (H1N1) viruses isolated from pigs in Poland Cover

Substitution in position 222 of haemagglutinin of pandemic influenza A (H1N1) viruses isolated from pigs in Poland

Open Access
|Dec 2015

Abstract

The aim of the study was to monitor genetic diversity and antigenic changes in the genome of influenza A(H1N1)pdm09 viral isolates detected during the post-pandemic period in Poland. Clinical specimens obtained from three suspected cases of influenza were analysed by sequencing. Among the differences identified in amino acids sequences, nine substitutions were located within the antigenic HA1 sites and in five residues forming receptor-binding pocket. The HA(D222G) mutation was shown in the isolate Swine/Poland/134312/12 obtained from a mild case of the disease. It must be emphasized that, in general, clinically mild cases are caused by the viruses in which that specific mutation, i.e. haemagglutinin (D222G), does not occur.

Language: English
Page range: 451 - 456
Submitted on: Jun 30, 2015
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Accepted on: Dec 4, 2015
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Published on: Dec 30, 2015
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2015 Andrzej Kowalczyk, Kinga Urbaniak, Iwona Markowska-Daniel, Zygmunt Pejsak, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.