Worm Brains they were called—thousands of people who'd bought an untested treatment guaranteed to produce greater intelligence. And it worked! But after a few weeks of increased IQ, the customers began to die as a parasite slowly grew in their brains.
Treating the disease was easy---a few drops of a common insecticide would halt the creature's growth.
No problem at all, really. Except that the government was hiding the treatment and thousands of victims were dying of malign neglect. And with each death another thing was born...
A continuation of the very original and interesting story begun in "The Cunningham Equations", though these are authors that respect the reader and both books stand on thier own. I can't figure out what the title is about unless it was the priest who helped the people infected by creating a new Catholic service with the new ritual of dropping ones drawers to get the medication the government didn't want people to have.
As I said, Original and entertaining especially for me with a well developed computer inteligence fighting government supercomputers!