H5N9 and H5N1 are two strains of bird flu that have recently sparked concern, especially after a significant outbreak at a ...
First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment ...
Both H5N9 and H5N1 were detected at the duck farm in Merced County, according to tests conducted by the US Department of ...