Rob Stein

When Christine Rowan gave birth prematurely in August, her new baby was having problems breathing. So Rowan brought her daughter, Zoe, to the Children's National Medical Center in Washington, D.C., for genetic testing.

"It's funny because when we first had the testing done, we didn't even really think about the fact the testing was going to lay out all of her DNA," says Rowan, 32, who lives in Northern Virginia.

But while Rowan and her husband were waiting for the results, questions started popping into their heads.

Members of a House subcommittee clashed repeatedly Wednesday with U.S. Food and Drug Commissioner Margaret Hamburg over the outbreak of meningitis caused by contaminated steroid injections.

Public health officials are warning that people in areas devastated by Superstorm Sandy face many risks in the aftermath and are urging people to protect themselves from health threats in the water, air and even their refrigerators.

As millions of people try to put their lives back together, the most obvious threat is the floodwaters themselves. In many places, the water could be a toxic stew.

Bill Sneddon had a feeling he was in trouble when his doctor called with his latest test results.

"I just had a premonition that something's not right," said Sneddon, 68, of Ocean Township, N.J.

And, sure enough, Sneddon's instincts were right. He had prostate cancer.

"Well, it's an eye-opener, you know. I didn't know if I had to buy a yard sale sign, you know," he said. "It's a shocking thing ... It always happens to someone else."

Geneticist reported Wednesday that they had crossed a threshold long considered off-limits: They have made changes in human DNA that can be passed down from one generation to the next.

The researchers at Oregon Health & Science University in Portland say they took the step to try to prevent women from giving birth to babies with genetic diseases. But the research is raising a host of ethical, social and moral questions.