MANISA

Darubini (Kiswahili for "magnifying scope") is a malaria microscopy agent for the labs that already exist across Tanzania and Africa. Malaria parasite density is still counted by eye: parasites against 200 white blood cells, field after field. It is slow and tiring, and two microscopists can disagree. Darubini puts a phone on the eyepiece, or a USB camera on the microscope, and does the counting with Meta's models: SAM 3.1 finds the white blood cells and tracks every cell through a panning video, so each is counted once. A Muse Spark agent runs the WHO counting rule through tools, audits a sample of its own detections, and writes the report in Kiswahili or English. Muse Voice Transcribe keeps the technician's hands on the microscope. On held-out patients it never saw: Parasite F1 is 0.80, and density is within 2× of the expert on 19 of 24 slides. SAM 3.1 is what moves density: those slides rise from 13 to 19 of 24. The Muse Spark audit caught all 8 over-counted slides.