Artalejo Rodríguez, Jesús ManuelEconomou, A.López Herrero, María Jesús2023-06-152023-06-152010-03-150377-042710.1016/j.cam.2009.11.003https://hdl.handle.net/20.500.14352/149.1We study the maximumn umber of infected individuals observed during an epidemic for a Susceptible–Infected–Susceptible (SIS) model which corresponds to a birth–death process with an absorbing state. We develop computational schemes for the corresponding distributions in a transient regime and till absorption. Moreover, we study the distribution of the current number of infectedindividuals given that the maximum number during the epidemic has not exceeded a given threshold. In this sense, some quasi-stationary distributions of a related process are also discussed.engjournal articlehttp://www.sciencedirect.com/science/article/pii/S0377042709007341http://www.sciencedirect.com/restricted access574Stochastic SIS epidemic modelMaximum number of infected individualsExtinction timeTransient distributionQuasi-stationary distributionAbsorption probabilitiesEcología (Biología)2401.06 Ecología animal