California NanoSystems Institute Apr 23 2025 Millions of people worldwide are affected by African sleeping sickness, Chagas disease and other life-threatening infections caused by microscopic parasites borne by insects such as the tsetse fly. Each of the underlying single-celled parasites - Trypanosoma brucei and its relatives - has one flagellum, a whiplike appendage that is essential for moving, infecting hosts and surviving in different environments. Now, a research team at the California