Researchers used data taken from a 1997 survey of almost 9,000 people and followed up with the young men and women each year until 2010 . CDC says that 79 % of U.S. babies born in 2011 were breast-fed . Extreme weather kills 2,000 Americans each year , CDC report says . Comment:
CDC says that 79 % of U.S. babies born in 2011 were breast-fed . Extreme weather kills 2,000 Americans each year , CDC report says . Comment: