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J Vet Med Sci. 2019 Oct 1. doi: 10.1292/jvms.19-0253. [Epub ahead of print]

Ecuadorian mainland industrial poultry production is free of H5/H7 avian influenza virus: national surveillance program in 2016.

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Faculty of Veterinary Medicine and Animal Husbandry, Central University of Ecuador.
Ecuador's Agriculture Quality Assurance Agency, AGROCALIDAD.


Avian influenza (AI) is a disease caused by influenza viruses type A that belong to the Orthomyxoviridae family. AI induces high economic losses in poultry production worldwide. Due to a possible outbreak, a national surveillance program was needed. From April to July 2016, 152 industrial poultry farms were randomly sampled. All samples were analyzed by competitive ELISA for Influenza type A viruses. Suspicious and positive sera were further analyzed by Hemagglutination Inhibition (HI) in order to serotype H5 or H7 low pathogenic avian influenza virus (LPAIV). The farms sampled showed 94.08%, 3.95% and 1.97% of negative, positive and suspicious results, respectively. However, serotyping revealed all positive and suspicious samples were negative to H5/H7 LPAIV. Our results show the absence of AI in the mainland Ecuadorian industrial poultry production.


Ecuador; broiler; high pathogenicity avian influenza; laying hens; low pathogenicity avian influenza

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