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First Case of Highly Pathogenic Avian Influenza in Poultry in Spain
Author(s) -
Iglesias I.,
Martínez M.,
Muñoz M. J.,
De La Torre A.,
SánchezVizcaíno J. M.
Publication year - 2010
Publication title -
transboundary and emerging diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.392
H-Index - 63
eISSN - 1865-1682
pISSN - 1865-1674
DOI - 10.1111/j.1865-1682.2010.01145.x
Subject(s) - influenza a virus subtype h5n1 , highly pathogenic , outbreak , biology , poultry farming , avian influenza virus , veterinary medicine , virology , virus , ecology , medicine
Summary In October 2009, highly pathogenic avian influenza virus (HPAIV) was isolated for the first time in poultry in Spain. Sequencing analysis revealed that it was an H7N7 HPAIV. The progenitors of H7 HPAIV strains involved in recent European poultry outbreaks were simultaneously circulating in wild birds. The infected Spanish farm is located close to a reservoir abundant in wild birds. Epidemiological investigation found no links to other poultry holdings and those located in the control area were negative for AIV. Previous spatial risk analyses had identified the area where the infected holding is located to beat high relative risk for the introduction and presence of H5N1 HPAIV by wild birds. We suggest a risk‐based surveillance scheme that targets smaller geographical units but maintains the number of wild birds being sampled, as early detection of potentially pathogenic AIV is crucial in preventing spread to poultry.