Microfluidic devices would be most successful if they were mass-produced and distributed at very low cost. Rapid, point-of-care confirmatory testing would increase diagnostic capacity and decrease the time to diagnosis and isolation. The very low cost of paper-based tests would make repeat testing feasible, so that individuals could test themselves daily at home, if necessary. If infections were caught early enough through regular testing, affected individuals could self-isolate and potentially reduce their contact with susceptible people.