In the transmission heyday of the international mpox outbreak early last summer, it appeared that containment might not be possible. In recent months, though, the rate of growth of new cases has slowed considerably in a number of countries. In the United States, daily case reports have been in the single digits since mid-December; the U.K. hasn’t reported a new case since before Christmas.
As the trajectory of the outbreak has shifted, mpox has faded from the public discourse. But the dwindling case counts obscure an important reality: The global footprint of a disease that until a few years ago could only be contracted in remote parts of a few countries in West or Central Africa has expanded substantially.