Outbreak Size Distribution in Stochastic Epidemic Models

Motivated by recent epidemic outbreaks, including those of COVID-19, we solve the canonical problem of calculating the dynamics and likelihood of extensive outbreaks in a population within a large class of stochastic epidemic models with demographic noise, including the susceptible-infected-recovered (SIR) model and its general extensions. In the limit of large populations, we compute the probability distribution for all extensive outbreaks, including those that entail unusually large or small (extreme) proportions of the population infected. Our approach reveals that, unlike other well-known examples of rare events occurring in discrete-state stochastic systems, the statistics of extreme outbreaks emanate from a full continuum of Hamiltonian paths, each satisfying unique boundary conditions with a conserved probability flux.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:128

Enthalten in:

Physical review letters - 128(2022), 7 vom: 18. Feb., Seite 078301

Sprache:

Englisch

Beteiligte Personen:

Hindes, Jason [VerfasserIn]
Assaf, Michael [VerfasserIn]
Schwartz, Ira B [VerfasserIn]

Links:

Volltext

Themen:

Journal Article

Anmerkungen:

Date Completed 08.03.2022

Date Revised 08.03.2022

published: Print

Citation Status MEDLINE

doi:

10.1103/PhysRevLett.128.078301

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM337756007