Gene analysis of malaria parasites has pinpointed western Cambodia as the hotspot of strains that are dangerously resistant to artesiminin, the frontline drug against the disease.
A World Health Organisation team was due Monday to wrap up a trip to Shanghai, centre of China's bird flu outbreak which has killed 20 people, as part of an investigation into how the virus is spreading.
US 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.
Scientists said Sunday they had found mutations in 26 genes that may cause oesophageal cancer, a breakthrough they hope will lead to new drugs for the deadly and increasingly frequent disease.
A growing number of US parents oppose doctors' recommendations to vaccinate teenage girls against human papillomavirus (HPV), the main cause of cervical cancer.
A small French study of 14 HIV patients who have remained healthy for years after stopping drug treatment offers fresh evidence that early medical intervention may lead to a "functional cure" for AIDS.
A SARS-like virus that has struck in Britain and the Middle East has claimed a new victim in Saudi Arabia, bringing the global toll from the mystery illness to nine.