ISSN:
1432-1416
Keywords:
Epidemiological model
;
Hopf bifurcation
;
Nonlinear incidence
;
Time delay
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Mathematics
Notes:
Abstract An epidemiological model with both a time delay in the removed class and a nonlinear incidence rate is analysed to determine the equilibria and their stability. This model is for diseases where individuals are first susceptible, then infected, then removed with temporary immunity and then susceptible again when they lose their immunity. There are multiple equilibria for some parameter values, and, for certain of these, periodic solutions arise by Hopf bifurcation from the large nontrivial equilibrium state.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00276080
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