Stocks Turn Positive

After opening in negative territory, stock markets have gone green.

Swine flu was blamed in part for the low open, with the transportation sector down nearly 3 percent over concerns that the outbreak might curtail travel. The European Union today warned against traveling to the United States and Mexico.

But health care stocks have shot up nearly 2 percent as investors bet that treatment could rake in big bucks.

The Dow Jones industrial average is up 22 points, or .27 percent. The broader Standard & Poor's 500 is flat, up less than 1 point and the Nasdaq is also flat, up 1.5 points.

--Ylan Q. Mui