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A semi-hybrid model for malaria with limited superinfection. (English) Zbl 0951.92025

Superinfection models play an important role in the understanding of Malaria [see K. Dietz, Lecture Notes Biomath. 39, 264-277 (1980; Zbl 0441.92020)]. I. Nåsell [Hybrid models of tropical infections. Lecture Notes Biomath. 59 (1985)] studied a superinfection model with limited superinfection. To make this hybrid model tractable, random variables are replaced by expectations. A model closer to a fully stochastic model is presented in this paper, where one of the human population and the mosquito population is subordinated to the other and a unique connection is required. Further it is assumed that there are several saturation level groups instead of one. A threshold theorem is treated for this general semihybrid model in great detail.

MSC:

92D30 Epidemiology
60J20 Applications of Markov chains and discrete-time Markov processes on general state spaces (social mobility, learning theory, industrial processes, etc.)
60J85 Applications of branching processes

Citations:

Zbl 0441.92020
Full Text: DOI