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Influenza A virus subtype H10N7

Suptype of the Influenza A virus

Summary

Suptype of the Influenza A virus

Influenza A virus subtype H10N7 (A/H10N7) is a subtype of the species Influenza A virus (sometimes called bird flu virus). H10N7 was first reported in humans in Egypt in 2004. It caused illness in two one-year-old infants, and residents of Ismailia, Egypt; one child's father, and a poultry merchant.

The first reported H10N7 outbreak in the US occurred in Minnesota on two turkey farms in 1979 and on a third in 1980. "The clinical signs ranged from severe, with a mortality rate as high as 31%, to subclinical. Antigenically indistinguishable viruses were isolated from healthy mallards on a pond adjacent to the turkey farms".

The Influenza A (H10N7) virus was also held responsible for an increased mortality of harbour seals (Phoca vitulina) in Europe in 2014. First cases were reported in spring 2014 in Sweden and subsequently spread to Denmark. Within a few months the virus spread to the Wadden Sea area of Germany and the Netherlands causing the death of about 10% of the local harbour seal population.

References

References

  1. (2013). "Fields Virology". Wolters Kluwer/Lippincott Williams & Wilkins.
  2. (2004-05-07). "EID Weekly Updates – Emerging and Reemerging Infectious Diseases, Region of the Americas". Pan American Health Organization.
  3. (1983). "Influenza A outbreaks in Minnesota turkeys due to subtype H10N7 and possible transmission by waterfowl". Avian Dis..
  4. (2016-05-01). "Spatiotemporal Analysis of the Genetic Diversity of Seal Influenza A(H10N7) Virus, Northwestern Europe". Journal of Virology.
  5. (2014-11-20). "Avian influenza A(H10N7) virus involvement in mass mortality of harbour seals (Phoca vitulina) in Sweden, March through October 2014". Eurosurveillance.
  6. (2015). "Influenza A(H10N7) Virus in Dead Harbor Seals, Denmark". Emerging Infectious Diseases.
  7. (2015). "Avian Influenza A(H10N7) Virus–Associated Mass Deaths among Harbor Seals". Emerging Infectious Diseases.
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