Nicholas Wade New York Times

The great waves of plague that twice devastated Europe and changed the course of history had their origins in China, a team of medical geneticists reported Sunday, as did a third plague outbreak that struck less harmfully in the 19th century. And in separate research, a team of biologists reported conclusively this month that the causative agent of...

The Nobel Prize in physiology or medicine has been awarded this year to Robert G. Edwards, an English biologist who, with a physician colleague, Patrick Steptoe, developed the in vitro fertilization procedure for treating human infertility. Since the birth of the first test tube baby, Louise Brown, on July 25, 1978, some four million babies worldwi...

The great waves of plague that twice devastated Europe and changed the course of history had their origins in China, a team of medical geneticists reported Sunday, as did a third plague outbreak that struck less harmfully in the 19th century. And in separate research, a team of biologists reported conclusively this month that the causative agent of...

The Nobel Prize in physiology or medicine has been awarded this year to Robert G. Edwards, an English biologist who, with a physician colleague, Patrick Steptoe, developed the in vitro fertilization procedure for treating human infertility. Since the birth of the first test tube baby, Louise Brown, on July 25, 1978, some four million babies worldwi...