Abstract:
:The modified SIS epidemiological model considers the usual direct transmission (short cycle) and indirect transmission (long cycle) of typhoid fever. Thresholds are determined, and the equilibrium points are shown to be globally stable. Local stability of the equilibrium points is shown in the corresponding model with vaccines. After estimating parameters using current statistical data for typhoid fever in Chile, computer simulations are used to obtain the numerical behavior of this disease and to estimate the effect of several control policies.
journal_name
Math Bioscijournal_title
Mathematical biosciencesauthors
González-Guzmán Jdoi
10.1016/0025-5564(89)90081-3subject
Has Abstractpub_date
1989-09-01 00:00:00pages
33-46issue
1eissn
0025-5564issn
1879-3134pii
0025-5564(89)90081-3journal_volume
96pub_type
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