Unprecedented bird flu shift leaves experts 'deeply concerned': 'Coughing and sneezing'
Across the Pacific Ocean, federal authorities have discovered a worrying change in the worsening bird flu outbreak. A second ...
US dodged a bird flu pandemic in 1957 thanks to eggs and dumb luck – with a new strain spreading fast, will Americans get lucky again?
With the devastating 1918 pandemic in mind, US health officials saw an outbreak in Asia and swung into action. What happened ...