Study of Influenza A Viruses in Mallards in Northern Europe
Author Information
Author(s): Zohari Siamak, Gyarmati Péter, Ejdersund Anneli, Berglöf Ulla, Thorén Peter, Ehrenberg Maria, Czifra György, Belák Sándor, Waldenström Jonas, Olsen Björn, Berg Mikael
Primary Institution: Joint Research and Development Unit for Virology, Immunobiology, and Parasitology, of the National Veterinary Institute (SVA) and Swedish University of Agricultural Sciences (SLU)
Hypothesis
What is the genetic variation of the NS gene of influenza A viruses in mallards in Northern Europe?
Conclusion
There is a large reservoir of different influenza A viruses in the mallard population in Northern Europe, with two distinct gene pools present.
Supporting Evidence
- 24% of examined mallards were found to be influenza A positive.
- Eleven haemagglutinin and nine neuraminidase subtypes were identified.
- Two distinct gene pools, corresponding to NS allele A and B, were present in the mallard populations.
Takeaway
The study found many different types of flu viruses in ducks in Northern Europe, showing that these ducks can carry a lot of different flu viruses.
Methodology
The study involved collecting samples from 781 mallards and analyzing the NS gene sequences of 45 influenza A viruses isolated from these birds.
Limitations
The study may not represent all mallard populations or influenza A virus subtypes present in Europe.
Participant Demographics
The study focused on mallards (Anas platyrhynchos) in Northern Europe.
Digital Object Identifier (DOI)
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