Slow Migration Eradicates Cooperative Antimicrobial Resistance
Hernández-Navarro et al. (published March 16, 2026) model antimicrobial resistance dynamics across a two-dimensional metapopulation of demes subject to time-varying environments and migration. They show that slow-but-nonzero migration combined with environmental fluctuations and demographic bottlenecks increases extinction probability of cooperative resistant strains and can accelerate resistance clearance. The work identifies near-optimal fluctuation timescales and migration rates and provides analytical and simulation guidance for laboratory tests.
Key Points
- 1Demonstrate that slow, nonzero migration increases extinction probability of cooperative resistant strains in fluctuating metapopulations.
- 2Reveal environmental fluctuations coupled to demographic bottlenecks create extinction events counteracted by migration, altering AMR dynamics.
- 3Suggest near-optimal fluctuation timescales and migration rates to experimentally accelerate resistance eradication.
Scoring Rationale
Strong novel theoretical insight with experimental guidance, limited to modeling assumptions and specific metapopulation scenarios.
Sources
Public references used for this report.
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