Influenza A virus surveillance in domestic pigs in Kazakhstan 2018-2021

G. V. Lukmanova, N. G. Klivleyeva, Т. И. Глебова, N. S. Ongarbayeva, М. Г. Шаменова, N. T. Saktaganov, A. M. Baimukhametova, S. B. Baiseiit, Dariya Ismagulova, Eldar Ismailov

2 more authors

Galikhan Baisseyev, M. K. Mustafin

2024

Full text Open access: Gold Metadata (CSL-JSON)

DOI 10.1590/0103-8478cr20230403

Data confidence 70 medium

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Abstract

ABSTRACT: This study described the results of a surveillance program monitoring circulation of influenza A viruses among domestic pigs (Sus domesticus) in Kazakhstan during 2018-2021. PCR data derived from 2,513 samples (nasopharyngeal swabs) collected from swine on large pig complexes and peasant farms located in different regions of Kazakhstan revealed that about 5% of samples were positive for influenza A virus RNA. This result suggested low levels of influenza A virus circulation in Kazakhstan. Subtyping of a set of samples revealed that the main strains circulating in 2018-2019 were A/H1N1 and A/H3N2.Surveillance conducted in 2020-2021 identified only A/H1N1 viruses in swine. The PCR data were confirmed by isolation of six strains: five influenza A/H1N1 viruses and one A/H3N2 virus.