DR Congo Ebola outbreak kills over 2,000 people since mid-May, with 4,381 confirmed cases across 53 health zones in five provinces

Australian researchers grow human heart valve tissue from stem cells in study published in Cell Stem Cell, offering a new platform to study childhood heart disease.

Researchers at Australia's Murdoch Children's Research Institute have created human heart valve tissues from stem cells, according to a study published in Cell Stem Cell. The lab-grown tissues could advance treatments for childhood heart valve disease and help model inflammatory conditions such as rheumatic heart disease.