| influenza a viruses in american white pelican (pelecanus erythrorhynchos). | the role of many wild waterbird species in the ecology and epidemiology of avian influenza viruses (aiv) remains unclear. we report the first isolation of aiv from american white pelicans (pelecanus erythrorhynchos; pelecaniformes) in north america. two h13n9 aivs were isolated from hatchling birds in breeding colonies in minnesota, usa, during 2007 and 2008. based on molecular sequencing of the hemagglutinin and neuraminidase genes, the 2008 virus was genetically related to aivs previously isol ... | 2010 | 20966281 |
| the 1992 epizootic of newcastle disease in double-crested cormorants in north america. | in the summer of 1992, morbidity and mortality in juvenile double-crested cormorants (phalacrocorax auritus; dcc) attributable to newcastle disease virus (ndv) was observed for the first time in seven northern usa states and one canadian province, and recurred in three western canadian provinces. based on clinical signs and laboratory diagnostic findings, dcc mortality from ndv occurred in 59 of the 63 nesting colonies and two of three non-colony sites investigated. an estimate of in excess of 2 ... | 1999 | 10231759 |