# Multi-Strain Radicalization Model
**Entity class:** Mathematical radicalization model
**Maturity:** Developed
## Definition
A **multi-strain radicalization model** represents overlapping ideological pathways and tests whether adoption of one extremist narrative changes susceptibility to another. The “strain” language is epidemiological modeling vocabulary; it does not make political beliefs biological pathogens.
## Relationships
- **extends:** [[wiki/SIR Model|SIR Model]], [[wiki/SEIR Model|SEIR Model]], and related [[wiki/Epidemic Model|epidemic models]].
- **models:** [[wiki/Memetic Contagion and Violent Extremism|Memetic Contagion and Violent Extremism]].
- **network context:** [[wiki/Multilayer Network|Multilayer Network]].
## Sources / Provenance
- [AIMS Mathematics — modeling radicalization under multiple influences, 2022](https://www.aimspress.com/article/id/61cae408ba35de32ad6e8481)
- [[research/A Network-Epidemiological Analysis of Radicalization and Real-Time Counterterrorism Observability|Network-Epidemiological Analysis]]