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, R_{exact,0}, which is seen to be the stochastic version of the well-known basic reproduction numbe...

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Detalles Bibliográficos
Autores: Gómez Corral, Antonio, Palacios Rodríguez, Fátima, Rodríguez Bernal, María Teresa
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/87563
Acceso en línea:https://hdl.handle.net/20.500.14352/87563
Access Level:acceso abierto
Palabra clave:bi-variate competition process
reproduction number
SIS epidemic model
vertical transmission
Ciencias
1208.06 Procesos de Markov
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, R_{exact,0}, which is seen to be the stochastic version of the well-known basic reproduction number. We characterize the probability distribution function of R_{exact,0} 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.