NEW YORK, Jan. 28 (Xinhua) -- Bird flu is forcing U.S. farmers to slaughter millions of chickens a month, pushing the average price per dozen of eggs nationwide to hit 4.15 U.S. dollars in December.
That's not quite as high as the 4.82 dollars record set two years ago, but the Agriculture Department predicts prices are going to soar another 20 percent this year.
