# Machine-Readable Public Health Sensing Grid **Entity class:** Computational surveillance architecture A **machine-readable public-health sensing grid** is a distributed computational environment that ingests health, injury, exposure, behavioral, event, geographic, and network data; standardizes provenance and permissions; estimates population state; detects change; and supports prevention decisions. Its scope is defined by lawful purpose, authorization, data handling, minimum-necessary principles, and auditability. ## Relationships [[wiki/Public Health Surveillance|Public Health Surveillance]] · [[wiki/Machine-Readable Assurance|Machine-Readable Assurance]] · [[wiki/Population Observability|Population Observability]] · [[wiki/Counterterrorism Collection - Public Health and Violence Prevention|Public Health and Violence Prevention]] ## Sources - [HHS — Disclosures for Public Health Activities](https://www.hhs.gov/hipaa/for-professionals/privacy/guidance/disclosures-public-health-activities/index.html) **As of:** 2026-09-23