HealthTB's extraordinary evolution reveals why the ancient disease lives on Once thought to have originated in cows and spread through dust, the surprising evolutionary story of tuberculosis reveals why it's so hard to stamp out this ancient disease, writes Carl Zimmer Features
HealthCord blood banking is not living up to its promise Banking a baby’s umbilical cord blood was once seen as a reasonable way to protect their future health, but much of that potential has turned out to be mere hype Analysis