Health officials concerned that deadly bird flu could soon pass easily between humans

Health officials concerned that deadly bird flu could soon pass easily between humans - The Week: "All it would take is five gene mutations of the H5N1 avian influenza virus to potentially create havoc on a global scale. Dutch researchers are reporting that if those mutations happen, the virus would become transmissible via coughing or sneezing, just like regular flu viruses. Currently, most cases of H5N1 arise after a person has had contact with sick or dead infected poultry."