Ahead of Print -Influenza A(H10N7) Virus in Dead Harbor Seals, Denmark - Volume 21, Number 4—April 2015 - Emerging Infectious Disease journal - CDC
Volume 21, Number 4—April 2015
Influenza A(H10N7) Virus in Dead Harbor Seals, Denmark
Influenza A virus is widespread and affects a wide range of species, including humans (1). Waterfowl are considered the natural reservoir for most subtypes of influenza A virus, and most mammalian-adapted viruses initially originated in interspecies transmission from aquatic birds (2). Avian influenza A virus (AIV) replicates primarily in the intestinal tract of birds and is transmitted mainly through the fecal–oral route (1). Pinnipeds (e.g., seals) share the same shoreline habitats as many waterfowl species and therefore can be exposed to AIV. Several instances of interspecies transmission between birds and harbor seals (Phoca vitulina) with AIV subtypes H7N7, H4N5, H4N6, H3N8, and H3N3 have been reported in the United States, and antibodies against a wide range of subtypes have been identified in Europe, Asia, and South America (reviewed by White ). Human infections with seal influenza A virus have occasionally been reported (3). More recently, A(H1N1)pdm09 virus was isolated from elephant seals (Mirounga angustirostris) off the central coast of California, USA (4). To our knowledge, AIV in harbor seals off the coast of northern Europe was first reported in April 2014 (5).
Dr. Krog is a molecular biologist at the National Veterinary Institute. His primary research focus is national surveillance of avian and swine influenza A virus and other zoonotic viruses.
We thank Ivar Høst for submitting the material; Y.M Deng and P. Iannello for contributing the hemagglutinin sequence EPI339225; R. Bodewes and colleagues for contributing EPI544356 and EPI544357; and S. Zohari and colleagues for EPI545212, EPI545213, EPI547696, and EPI547697 to the Global Initiative on Sharing All Influenza Data EpiFlu database.
Surveillance of diseases in wildlife is financed by the Danish Forest and Nature Agency, project no. NST-410239.
- Reperant LA, Rimmelzwaan GF, Kuiken T. Avian influenza viruses in mammals. Rev Sci Tech. 2009;28:137–59 .PubMed
- Harder TC, Siebert U, Wohlsein P, Vahlenkamp T. Influenza A virus infections in marine mammals and terrestrial carnivores. Berl Munch Tierarztl Wochenschr. 2013;126:500–8 .PubMed
- White VC. A review of influenza viruses in seals and the implications for public health. US Army Med Dep J. 2013:45–50. PMID: 23277445
- Goldstein T, Mena I, Anthony SJ, Medina R, Robinson PW, Greig DJ, Pandemic H1N1 influenza isolated from free-ranging northern elephant seals in 2010 off the central California coast. PLoS ONE. 2013;8:e62259. DOIPubMed
- Zohari S, Neimanis A, Härkönen T, Moraeus C, Valarcher JF. Avian influenza A (H10N7) virus involvement in mass mortality of harbour seals (Phoca vitulina) in Sweden, March through October 2014. Euro Surveill. 2014;19:20967 .PubMed
- MacDonald DW, Gilcheust EW. Dipetalonema spirocauda and Pseudomonas aeruginosa infection in a harbor seal (Phoca vitulina). Can Vet J.1969;10:220–1 .PubMed
- Trebbien R, Bragstad K, Larsen LE, Nielsen J, Bøtner A, Heegaard PMH, Genetic and biological characterisation of an avian-like H1N2 swine influenza virus generated by reassortment of circulating avian-like H1N1 and H3N2 subtypes in Denmark. Virol J. 2013;10:290. DOIPubMed
- Barrett T, Visser IKG, Mamaev L, Goatley L, van Bressem MF, Osterhaus ADME. Dolphin and porpoise morbilliviruses are genetically distinct from phocine distemper virus. Virology. 1993;193:1010–2. DOIPubMed
- Arzey GG, Kirkland PD, Arzey KE, Frost M, Maywood P, Canaty S, Influenza virus A (H10N7) in chickens and poultry abbattoir workers, Australia.Emerg Infect Dis. 2012;18:814–6. DOIPubMed
- Zohari S, Metreveli G, Kiss I, Belák S, Berg M. Full genome comparison and characterization of avian H10 viruses with different pathogenicity in mink (Mustela vison) reveals genetic and functional differences in the non-structural gene. Virol J. 2010;7:145. DOIPubMed
- Callan RJ, Early G, Kida H, Hinshaw VS. The appearance of H3 influenza viruses in seals. J Gen Virol. 1995;76:199–203. DOIPubMed
- Hinshaw VS, Bean WJ, Webster RG, Rehg JE, Fiorelli P, Early G, Are seals frequently infected with avian influenza viruses? J Virol. 1984;51:863–5.PubMed
- Lang G, Gagnon A, Geraci JR. Isolation of an influenza A virus from seals. Arch Virol. 1981;68:189–95. DOIPubMed
- Webster RG, Hinshaw VS, Bean WJ, van Wyke KL, Geraci JR, St Aubin DJ, Characterization of an influenza A virus from seals. Virology.1981;113:712–24. DOIPubMed
- Wood GW, Banks J, Strong I, Parsons G, Alexander DJ. An avian influenza virus of H10 subtype that is highly pathogenic for chickens, but lacks multiple basic amino acids at the haemagglutinin cleavage site. Avian Pathol. 1996;25:799–806. DOIPubMed
Suggested citation for this article: Krog JS, Hansen MS, Holm E, Hjulsager CK, Chriél M, Pedersen K, et al. Influenza A(H10N7) virus in dead harbor seals, Denmark. Emerg Infect Dis [Internet]. 2015 Apr [date cited]. http://dx.doi.org/10.3201/eid2104.141484
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