Paton, University of Iowa (THE CONVERSATION) The flu sickens millions ... about the current avian influenza outbreak. Different strains of influenza A and influenza B emerge each year from about ...

depending on the location of recent bird flu outbreaks and some state laws requiring eggs to be cage-free. Cage-free eggs were $9.99 per dozen at a Safeway in downtown San Francisco on Thursday.

But prices vary widely around the country, depending on the location of recent bird flu outbreaks and some state laws requiring eggs to be cage-free. At a Safeway in downtown San Francisco on ...

But prices vary widely around the country, depending on the location of recent bird flu outbreaks and some state laws requiring eggs to be cage-free. At a Safeway in downtown San Francisco on ...