Malaysia was on the brink of eliminating malaria – then a new parasite swung out of the jungle

After hoisting a couple of 32 kilogram gas canisters onto their shoulders, the scientists set off into the Bornean jungle, slicing a path through the dense foliage with a sharp machete. Above them, a troop of long-tailed macaques swing through the canopy, barking as they leap from tree to tree. …