Bird Flu

Pandemic Potential? How Mutant Bird Flu Goes Airborne
H5N1 bird flu viruses show up in gold; they have infected a cell culture made of canine kidney cells, shown in green. Scientists and public health officials fear H5N1 could one day cause a flu pandemic, just as H1N1 did in 1918. (CDC/ Courtesy of Cynthia Goldsmith; Jacqueline Katz; Sherif R. Zaki)

Bird Flu/Avian Flu/H1N1