D. J. Hulse-Post, etc.,al. Role of domestic ducks in the propagation and biological evolution of highly pathogenic H5N1 influenza viruses in Asia. PNAS published July 19, 2005, 10.1073/pnas.0504662102
Wild waterfowl, including ducks, are natural hosts of influenza A viruses. These viruses rarely caused disease in ducks until 2002, when some H5N1 strains became highly pathogenic. Here we show that these H5N1 viruses are reverting to nonpathogenicity in ducks. Ducks experimentally infected with viruses isolated between 2003 and 2004 shed virus for an extended time (up to 17 days), during which variant viruses with low pathogenicity were selected. These results suggest that the duck has become the "Trojan horse" of Asian H5N1 influenza viruses. The ducks that are unaffected by infection with these viruses continue to circulate these viruses, presenting a pandemic threat.
0504662102v1.pdf
See Also:
Latest articles in those days:
- Structures of H5N1 influenza polymerase with ANP32B reveal mechanisms of genome replication and host adaptation 3 days ago
- Risk assessment of a highly pathogenic H5N1 influenza virus from mink 3 days ago
- Detection of clade 2.3.4.4b highly pathogenic H5N1 influenza virus in New York City 3 days ago
- Sequence-based epitope mapping of high pathogenicity avian influenza H5 clade 2.3.4.4b in Latin America 3 days ago
- Guanylate-binding protein 1 inhibits inflammatory factors produced by H5N1 virus through Its GTPase activity 3 days ago
[Go Top] [Close Window]