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Genotypic evolution and epidemiological characteristics of H9N2 influenza virus in Shandong Province, China

2 Apr 2019

Abstract excerpt

H9N2 avian influenza has been prevalent in chicken flocks of China for years. In the first half year of 2018, clinical cases of suspected H9N2 infection were collected from chicken flocks in Shandong province. Nine strains of H9N2 influenza virus were isolated. The pathological changes of the dead chickens were mainly respiratory inflammation, renal swelling, and secondary infection. The microscopic lesions were...

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PMID: 30941436
DOI: 10.3382/ps/pez151

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