Fig. 1.
Proportionate universalism versus equality based infectious disease testing program. This figure represents a conceptual representation of the concepts of equitable vs. equal population testing/screening interventions. For example: if Population A represents a population with strong health access and resources, Population B represents a population with some disparity in social determinants of health, and Population C represents a population with many disparities in social determinants of health. An equality-based testing program would provide equal services to all regardless of risk or access disadvantage for Population B and C, while a proportional universalism (equitable) testing program would provide additional resources customized to the needs of population B and C to help each of them reach a given testing goal.