Now algae bloomed as never before, causing snail populations to explode. The snails hosted tiny parasitic worms that harbored schistosomiasis, a horrible disease that leaves its victims chronically prostrate with abdominal pain, high fever, fatigue, and diarrhea. Schistosomiasis had been unknown in the region before Ford came along; after Fordlandia, it was endemic. Malaria, yellow fever, elephantiasis, and hookworm were rife as well. Agonizing discomfort could come from almost anywhere. The river teemed with a little fish, the candiru, or toothpick fish, which would swim into any available human orifice (most notoriously the penis), then extend prickly, backward-facing spines, making it impossible to dislodge. On land, maggots from the botfly Dermatobia hominis burrowed into the skin and hatched eggs; victims knew of an infestation when they could see wriggling just under their skin or when sores erupted and newborn maggots spilled out. Beyond the camp boundaries, vipers and jaguars