British scientists begin a new study on Tuesday to consider how human DNA is used in animal experiments and to determine what the boundaries of such controversial science might be. Read More

Powerful scans are letting doctors watch just how the brain changes in veterans with post-traumatic stress disorder and concussion-like brain injuries _ signature damage of the Iraq and Afghanistan wars. Read More

The American Medical Association on Monday rebuffed dissident members and voted to stick with support for ongoing health reform efforts, while reiterating wariness over proposals that threaten doctors' pocketbooks and independence. Read More

In its first study of women's health around the globe, the World Health Organization said Monday that the AIDS virus is the leading cause of death and disease among women between the ages of 15 and 44. Read More

In its first study of women's health around the globe, the World Health Organization said Monday that the AIDS virus is the leading cause of death and disease among women between the ages of 15 and 44. Read More

The chairman of the House Education and Labor Committee wants an investigation into the risk of deadly E. coli getting into school lunches. Read More

In Britain, there are no long lines of people seeking swine flu vaccine. Doctor's offices aren't swamped with desperate calls. And there are no cries of injustice that the vaccine is going to wealthy corporations or healthy people who don't really need it. Read More

Only about a third of adults who have tried to get a swine flu vaccine have been able to get it, according to a new national poll released Friday. Read More

Some of New York's biggest companies, including Wall Street giants Goldman Sachs and Citigroup, received doses of swine flu vaccine for at-risk employees, drawing criticism that the hard-to-find vaccine is going first to the privileged. Read More

French scientists mixed gene therapy and bone marrow transplants in two boys to seemingly halt a brain disease that can kill by adolescence. The surprise ingredient: They disabled the HIV virus so it couldn't cause AIDS, and then used it to carry in the healthy new gene. Read More

The World Health Organization's flu chief said the swine flu virus has now become the predominant flu strain worldwide. Read More

A doctors group is under fire for accepting funding from the Coca-Cola Co. for educational materials on soft drink consumption. The American Academy of Family Physicians says Coke will have no influence over its message, but critics say the arrangement will water down information about soda's harmful effects on health. Read More

A 13-year-old Iowa cat has been infected with swine flu, veterinary and federal officials said Wednesday, and it is believed to be the first case of the H1N1 virus in a feline. Read More

The U.S. Department of Agriculture said Wednesday that pigs in a commercial herd in Indiana have tested positive for swine flu, making it the first time the virus has been found in such hogs. Read More

A 13-year-old Iowa cat has been infected with swine flu, veterinary and federal officials said Wednesday in what is believed to be the first case of the H1N1 virus in a feline in the United States. Read More

Last year pharmaceutical companies spent more than $4 billion urging patients like you to "ask your doctor" about their drugs. But if you want a prescription that won't empty your wallet, while still keeping you well, you might start asking your doctor about drugs you don't see on TV. Read More

Men may protect more than their hearts if they keep cholesterol in line: Their chances of getting aggressive prostate cancer may be lower, new research suggests. Read More

Premature births, often due to poor care of low-income pregnant women, are the main reason the U.S. infant mortality rate is higher than in most European countries, a government report said Tuesday. Read More

Russia and Slovakia tightened their borders with Ukraine on Tuesday as the World Health Organization began investigating a suspected swine flu outbreak. Read More

A mother watched with dread as a nurse inserted a tube in her baby's head. Blood streamed into the anemic 4-month-old who already has malaria, the mosquito-borne disease that kills a million African children every year. Read More