A 30-year-old infertile woman gave birth after surgeons removed her ovaries and re-implanted tissue they treated in a lab, researchers report.

The experimental technique was only tried in a small group of Japanese women with a specific kind of infertility problem, but scientists hope it can also help women in their early 40s who have trouble getting pregnant because of their age.

The world is aging so fast that most countries are not prepared to support their swelling numbers of elderly people, according to a global study going out Tuesday by the United Nations and an elder rights group.

The report ranks the social and economic well-being of elders in 91 countries, with Sweden coming out on top and Afghanistan at the bottom. It reflects what advocates for the old have been warning, with increasing urgency, for years: Nations are simply not working quickly enough to cope with a population graying faster than ever before. By the year 2050, for the first time in history, seniors over the age of 60 will outnumber children under the age of 15.

A biotech drug from Roche has become the first medicine approved to treat breast cancer before surgery, offering an earlier approach against one of the deadliest forms of the disease.

The U.S. IFood and Drug Administration approved Perjeta for women with a form of early-stage breast cancer who face a high risk of having their cancer spread to other parts of the body.

Nearly nine in 10 children in China can identify a cigarette logo, according to a U.S. study out Monday that measured tobacco recognition among five- and six-year-olds in various countries.

The study in the journal Pediatrics covered six nations -- China, India, Nigeria, Pakistan, Russia, as well as China -- where adult smoking rates are the highest, according to the World Health Organization.

The Ombudsman for Children in Sweden called Saturday for the country to ban circumcision, a practice he said contravened the basic rights of boys.

"Circumcising a child without medical justification nor his consent contravenes this child's human rights," wrote Fredrik Malmberg in a text co-signed with health professionals and published in the daily newspaper Dagens Nyheter.

Mexico's health authorities say cholera has killed one person and sickened at least another nine in central Mexico.

Mexico's Health Department says two cases were detected in Mexico City and the rest in the nearby state of Hidalgo, where one person died.

The potential use of propofol in a Missouri execution next month is raising concerns that the anti-death penalty European Union could limit its export, endangering the supply of the vital anesthetic to thousands of hospitals and clinics across the United States.

Convicted killer Allen Nicklasson is scheduled to die by injection one minute after midnight on Oct. 23. Missouri changed its execution procedure last year to include propofol as the lethal drug. Nicklasson's execution will be the first to use propofol.

Poland's parliament on Friday abandoned a proposal to restrict abortion in the case of congenital disorders in the heavily Catholic country.

Four hundred thousand Poles signed a petition demanding the move, but lawmakers rejected it on the first reading with 233 votes against, 182 in favor and six abstentions in the 460-seat parliament.

Brazilian scientists will next month begin clinical tests on humans of a new vaccine against dengue fever, a leading Sao Paulo-based biomedical research institute said Thursday.

The vaccine is being developed to combat the four closely related strains of dengue viruses that have been identified around the world, the Butantan institute said in a statement.

An Australian teenager Friday lost his court battle to refuse life-saving medical treatment because he is a Jehovah's Witness, with a court upholding an earlier judgement permitting a blood transfusion.

The 17-year-old, who suffers from an aggressive cancer, lost his case against Sydney Children's Hospital in March in which he had argued that treating him with blood products or a transfusion would breach his relationship with God.