HEALTH BEAT

(NBC) -- The FDA said Tuesday it still has no idea what caused that salmonella outbreak that's sickened hundreds of Americans.

WASHINGTON (AP) -- Remember peeking through a View-Master? Scientists are using the same concept behind the classic kids' toy to try to see mammograms in 3-D.

WASHINGTON (AP) -- As salmonella cases continue to climb, the government is checking if tainted tomatoes really are to blame for the record outbreak.

(NBC) -- If you're waging a war on aging you're not alone. Millions of people are buying all sorts of lotions and potions and undergoing procedures geared to turn back the hands of time.

NEW YORK (AP) -- Scientists have identified a gene that may raise the risk of getting the most common kind of Alzheimer's disease in people who inherit a certain form of it.

WASHINGTON (AP) -- Many of the nation's estimated 10.8 million underage drinkers are turning to their parents or other adults for free alcohol.

AUGUSTA (NEWS CENTER) -- State environmental officials say the Midcoast and Acadia regions will see high levels of ground level ozone Thursday.

CALIFORNIA (NBC) -- A California woman's life is being saved by a baby she doesn't even know.

(NBC) -- A common golf injury could keep some at home, and doctors say it's most likely to be men.

WASHINGTON (AP) -- Pick a tomato in the blazing sun and plunge it straight into cold water. If that happened on the way to market, it might be contaminated.

(NBC) -- New numbers from the Centers for Disease Control indicate the salmonella outbreak related to tomatoes is still not over.

ATLANTA (AP) -- A new experimental treatment offers hope that even late-stage skin cancers might be cured.

CONCORD, N.H. (AP) -- The New Hampshire Department of Health and Human Services says it's identified its first illness linked to salmonella-tainted tomatoes.

(NBC) -- X-rays now have the ability to show a dentist much more than just your teeth.

WASHINGTON (AP) Tomatoes from Baja California, Mexico, have been cleared of suspicion in the salmonella outbreak.

(NBC) -- This week, the Bush Administration tried to head off the controversy by proposing an additional $275 million for the FDA's budget but some remained critical it wasn't enough.

AUGUSTA (NEWS CENTER) -- More Maine doctors offices will be switching to electronic medical records soon, thanks to a new incentive program offered by the U.S. Department of Health and Human Services.

NEW YORK (NBC) -- Over-the counter brand name medicines and products are generally more expensive than store brands or generics, but do they do more?

(NBC) -- A warning for men who take Viagra and other impotence drugs: They could be hiding one of the first symptoms of a much bigger problem.

(NBC) -- Imagine e-mailing your doctor with a simple question, having him shoot your prescription straight to the pharmacy, and checking lab results all without ever sitting in a waiting room.

(NBC) -- Water is touted by many as the world's healthiest drink. Some call it the secret to losing weight; others say it can be cure-all for things like dry skin, hair and nails.

UNDATED (AP) -- Breast cancer patients with low levels of vitamin D were much more likely to die of the disease or have it spread than patients getting enough of the nutrient, a study found, adding to evidence the "sunshine vitamin" has anti-cancer benefits.

(NBC) -- New findings show a startling new correlation between overweight women and breast cancer. The research indicates that the disease is more aggressive and can be far deadlier in overweight women.

CHICAGO, IL (AP) -- Adding the novel cancer drug Erbitux to standard chemotherapy helped advanced lung cancer patients live just a month longer than chemo alone, a study found.

(NEWS CENTER) -- More and more Americans are fighting spring allergies.

(NBC) -- Too few nurses taking care of too many patients. It's a chronic problem at hospitals across the country.

WASHINGTON (AP) -- Doctors may soon get a new way to tell which medications are safe for women to use during pregnancy and when they breastfeed.

(NBC) -- HIV, the virus that triggers AIDS, may be more diverse and difficult to control than researchers had previously envisioned.

SANTA CLARA, CA (NBC) -- Two out of every three students at the center are non-verbal, but thanks to a voice output device 12-year-old alex is able to get the snacks he craves.