H7N9 bird flu has claimed two more lives in Shanghai, Chinese state media said on Tuesday, bringing the death toll from the disease to 16.

China has confirmed 77 human cases of H7N9 avian influenza since announcing two weeks ago that it had found the strain in people for the first time.

U.S. hospitals face a disincentive to improve care because they make drastically more money when surgery goes wrong than when a patient is discharged with no complications, a study published Tuesday found.

"We found clear evidence that reducing harm and improving quality is perversely penalized in our current health care system," said study author Sunil Eappen, chief medical officer of Massachusetts Eye and Ear Infirmary.

Thousands of DNA tests on beef products across the European Union found the meals contained up to 5.0 percent of horsemeat, the European Commission said Tuesday.

The EU on February 15 ordered 2,250 DNA tests on prepared meals said to contain beef in the wake of a horsemeat scandal that hugely undermined consumer confidence in the food industry.

The U.S. Supreme Court heard the most high-profile genetics case in history on Monday, as justices considered whether private firms should be allowed to patent human genes linked to breast cancer.

The court's decision could have broad implications for research, patient health and the pharmaceutical industry, with nearly 20 percent of the approximately 24,000 human genes currently under patent, some linked to cancer and Alzheimer's disease.

Australians are smoking and drinking less than they were five years ago but are fatter and more anxious, according to a new survey profiling the nation's health launched Tuesday.

The Wellness Index, compiled by polling firm Roy Morgan Research and an initiative of health company Alere, has surveyed the well-being of 50,000 Australians since 2007 to paint a picture of lifestyle and disease.

The parents of an 18-month girl in India whose head has swollen to more than double its normal size reacted with joy on Monday after a top private hospital offered to fly her to New Delhi for tests.

Roona Begum, who suffers from hydrocephalus, a rare but treatable disorder that causes fluid to build up on the brain, was discovered last week living with her parents who are too poor to pay for treatment.

Researchers in the United States on Sunday said they had bio-engineered a kidney and transplanted it into rats, marking a step forward in a quest to help patients suffering from kidney failure.

The prototype proves that a "bio-kidney" can work, emulating breakthroughs elsewhere to build replacement structures for livers, hearts and lungs, they said.

France will launch one its biggest-ever trials on Wednesday as five managers from company PIP face charges of selling faulty breast implants that sparked a global health scare.

More than 5,000 women have registered as plaintiffs in the case, which sees the defendants including 73-year-old PIP founder Jean-Claude Mas charged with aggravated fraud for using industrial-grade silicone in implants.

China's poultry industry lost 10 billion yuan ($1.6 billion) in the week after the H7N9 bird flu virus began infecting humans, state-run media said Monday as they sought to discourage panic.

Altogether 60 people have been confirmed as infected and 13 have died in the two weeks since Chinese authorities said they found the strain in humans for the first time.

China's H7N9 bird flu virus spread to a new province on Sunday, with state media reporting two human cases in central Henan just west of the the area where the disease has been centered.

Until Saturday, when one case was reported in the capital of Beijing, all other instances had occurred in the eastern city of Shanghai and nearby Zhejiang, Jiangsu and Anhui provinces hundreds of miles (kilometers) away.