Pathologic Changes in Wild Birds Infected with Highly Pathogenic Avian Influenza A(H5N8) Viruses, South Korea, 2014

Autor: Hye-Ryoung Kim, Yong-Kuk Kwon, Il Jang, Youn-Jeong Lee, Hyun-Mi Kang, Eun-Kyoung Lee, Byung-Min Song, Hee-Soo Lee, Yi-Seok Joo, Kyung-Hyun Lee, Hyun-Kyoung Lee, Kang-Hyun Baek, You-Chan Bae
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Emerging Infectious Diseases, Vol 21, Iss 5, Pp 775-780 (2015)
Druh dokumentu: article
ISSN: 1080-6040
1080-6059
DOI: 10.3201/eid2105.141967
Popis: In January 2014, an outbreak of infection with highly pathogenic avian influenza (HPAI) A(H5N8) virus began on a duck farm in South Korea and spread to other poultry farms nearby. During this outbreak, many sick or dead wild birds were found around habitats frequented by migratory birds. To determine the causes of death, we examined 771 wild bird carcasses and identified HPAI A(H5N8) virus in 167. Gross and histologic lesions were observed in pancreas, lung, brain, and kidney of Baikal teals, bean geese, and whooper swans but not mallard ducks. Such lesions are consistent with lethal HPAI A(H5N8) virus infection. However, some HPAI-positive birds had died of gunshot wounds, peritonitis, or agrochemical poisoning rather than virus infection. These findings suggest that susceptibility to HPAI A(H5N8) virus varies among species of migratory birds and that asymptomatic migratory birds could be carriers of this virus.
Databáze: Directory of Open Access Journals
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