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1 March 2007 Investigations on Infection Status with H5 and H7 Avian Influenza Virus in Short-Distance and Long-Distance Migrant Birds in 2001
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Abstract

The role of migrating birds as potential vectors for avian influenza virus (AIV) was investigated. We captured 543 migrating passerines during their stopover on the island of Helgoland (North Sea) in spring and autumn 2001. These birds were sampled for avian influenza A viruses (AIV), specifically the subtypes H5 and H7. For virus detection, samples were taken from 1) short-distance migrants, such as chaffinches (Fringilla coelebs; n = 131) and song thrushes (Turdus philomelos; n = 169); and 2) long-distance migrants, such as garden warblers (Sylvia borin; n = 142) and common redstarts (Phoenicurus phoenicurus; n = 101). Virus isolation assays failed to identify AIV. Therefore, regarding the actual low number of samples, we speculate that the tested four species of passerines were not infected by AIV, indicating that the passerine species examined in this study may play only a minor role as potential vectors of AIV.

B. Schnebel, V. Dierschke, S. Rautenschlein, M. Ryll, and U. Neumann "Investigations on Infection Status with H5 and H7 Avian Influenza Virus in Short-Distance and Long-Distance Migrant Birds in 2001," Avian Diseases 51(s1), 432-433, (1 March 2007). https://doi.org/10.1637/7546-033106R.1
Received: 31 March 2006; Accepted: 1 August 2006; Published: 1 March 2007
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