# Human as Organism and Person
**Entity class:** Scientific and legal ontology
A human being is simultaneously a **biological organism** and a **legal Person**. Epidemiology may model the organism as a host, receptor, carrier, contact, exposure point, or cohort member; graph analytics may model the same human as a node; threat analysis may model a dangerous-individual hypothesis. None of those abstractions cancels legal personhood.
## Relationships
[[wiki/Ontological Representation of a Human|Ontological Representation of a Human]] · [[wiki/Public Health Surveillance|Public Health Surveillance]] · [[wiki/Person as Threat System|Person as Threat System]] · [[wiki/Counterterrorism Collection - Public Health and Violence Prevention|Public Health and Violence Prevention]]
## Sources
- [Jacobson v. Massachusetts, 197 U.S. 11 (1905)](https://www.law.cornell.edu/supremecourt/text/197/11)
**As of:** 2026-09-23