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Experimental Direct-Contact Transmission of Influenza A/H9n2 Virus in the Guinea Pig Model in Iran Publisher



Ghabeshi S1 ; Ebrahimie E2, 3 ; Salimi V1 ; Ghanizadeh A4 ; Khodakhah F1 ; Yavarian J1 ; Norouzbabaei Z1 ; Sasani F5 ; Rezaie F1 ; Azad TM1
Authors
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Authors Affiliations
  1. 1. Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. School of Animal and VeterinarySciences, University of Adelaide, Adelaide, Australia
  3. 3. Genomics Research Platform, School of Life Sciences, La Trobe University, Melbourne, VIC, Australia
  4. 4. Department of Biotechnology, Razi Vaccine and Serum Research Institute, Karaj, Alborz, Iran
  5. 5. Department of Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

Source: Future Virology Published:2020


Abstract

The present study aims to evaluate risk factors for the transmission of A/H9N2 viruses in guinea pig model. Materials & methods: Lung tissue samples were collected from the chicken clinically infected with influenza A/H9N2 virus in 2018. Next, virus isolation and titration, as well as reverse transcription PCR were performed. Then, hemagglutnation and neuraminidase genes was sequenced to identify different positions (hotspots) involved in transmission and host adaptation. Results: Influenza A/H9N2 virus could replicate in low titers in the nasal turbinate and transmit from infected to noninfected guinea pigs. Conclusion: Hotspots on the surface glycoproteins had the potential to alter transmission properties in the new host. © 2020 Future Medicine Ltd