2013/09/10 by Eric Forgoston, Forgoston, Eric, Ira B. Schwartz +1
Environmental Science · Mathematics · Medicine · #Biological Physics (physics.bio-ph) #COVID-19 epidemiological studies #Ecosystem dynamics and resilience #FOS: Biological sciences #FOS: Physical sciences #Mathematical and Theoretical Epidemiology and Ecology Models #Populations and Evolution (q-bio.PE)
paper · pdf · doi:10.48550/arxiv.1309.2600
openalex publication_date 2013/09/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider a stochastic Susceptible-Exposed-Infected-Recovered (SEIR) epidemiological model with a contact rate that fluctuates seasonally. Through the use of a nonlinear, stochastic projection, we are able to analytically determine the lower dimensional manifold on which the deterministic and stochastic dynamics correctly interact. Our method produces a low dimensional stochastic model that captures the same timing of disease outbreak and the same amplitude and phase of recurrent behavior seen in the high dimensional model. Given seasonal epidemic data consisting of the number of infectious individuals, our method enables a data-based model prediction of the number of unobserved exposed individuals over very long times.