Document Detail

Stochastic models of some endemic infections.
MedLine Citation:
PMID:  12047919     Owner:  NLM     Status:  MEDLINE    
Stochastic models are established and studied for several endemic infections with demography. Approximations of quasi-stationary distributions and of times to extinction are derived for stochastic versions of SI, SIS, SIR, and SIRS models. The approximations are valid for sufficiently large population sizes. Conditions for validity of the approximations are given for each of the models. These are also conditions for validity of the corresponding deterministic model. It is noted that some deterministic models are unacceptable approximations of the stochastic models for a large range of realistic parameter values.
Ingemar Nåsell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Mathematical biosciences     Volume:  179     ISSN:  0025-5564     ISO Abbreviation:  Math Biosci     Publication Date:    2002 Jul-Aug
Date Detail:
Created Date:  2002-06-05     Completed Date:  2002-07-23     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0103146     Medline TA:  Math Biosci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1-19     Citation Subset:  IM    
Department of Mathematics, The Royal Institute of Technology, S-100 44, Stockholm, Sweden.
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MeSH Terms
Communicable Diseases / epidemiology*
Endemic Diseases*
Markov Chains
Models, Biological*

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