On the exact reproduction number in SIS epidemic models with vertical transmission

This paper proposes a bi-variate competition process to describe the spread of epidemics of SIS type through both horizontal and vertical transmission. The interest is in the exact reproduction number, , which is seen to be the stochastic version of the well-known basic reproduction number. We chara...

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Detalles Bibliográficos
Autores: Gómez Corral, A., Palacios Rodríguez, Fátima, Rodríguez Bernal, M.T.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/162647
Acceso en línea:https://hdl.handle.net/11441/162647
https://doi.org/10.1007/s40314-023-02424-5
Access Level:acceso abierto
Palabra clave:Bi-variate competition process
Reproduction number
SIS epidemic model
Vertical transmission
Descripción
Sumario:This paper proposes a bi-variate competition process to describe the spread of epidemics of SIS type through both horizontal and vertical transmission. The interest is in the exact reproduction number, , which is seen to be the stochastic version of the well-known basic reproduction number. We characterize the probability distribution function of by decomposing this number into two random contributions allowing us to distinguish between infectious person-to-person contacts and infections of newborns with infective parents. Numerical examples are presented to illustrate our analytical results.