The Guardian in the UK reports on zombie ants. The fungus that infects the ant literally takes over the brain of the ant to make it climb to a certain height and attach itself to the main vein of a leaf on a tree.
They ask of the fungus: ““The question now is, what are the triggers that push a parasite not just to kill its host, but to take over its brain and muscles and then kill it. Why go to the bother? Why are there not more of them?”
“Scientists are not clear how the fungus controls the ants it infects, but know that the parasite releases alkaloid chemicals into the insect as it consumes it from the inside.”
So, how long before we are able to modify the fungus to attack humans?