An Epidemic Model With Post-Contact Prophylaxis of Distributed Length II. Stability and Oscillations if Treatment is Fully Effective

H. R. Thieme; A. Tridane; Y. Kuang

Mathematical Modelling of Natural Phenomena (2008)

  • Volume: 3, Issue: 7, page 267-293
  • ISSN: 0973-5348

Abstract

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A possible control strategy against the spread of an infectious disease is the treatment with antimicrobials that are given prophylactically to those that had contact with an infective person. The treatment continues until recovery or until it becomes obvious that there was no infection in the first place. The model considers susceptible, treated uninfected exposed, treated infected, (untreated) infectious, and recovered individuals. The overly optimistic assumptions are made that treated uninfected individuals are not susceptible and treated infected individuals are not infectious. Since treatment lengths are considered that have an arbitrary distribution, the model system consists of ordinary differential and integral equations. We study the impact of the treatment length distribution on the large-time behavior of the model solutions, namely whether the solutions converge to an equilibrium or whether they are driven into undamped oscillations.

How to cite

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Thieme, H. R., Tridane, A., and Kuang, Y.. "An Epidemic Model With Post-Contact Prophylaxis of Distributed Length II. Stability and Oscillations if Treatment is Fully Effective." Mathematical Modelling of Natural Phenomena 3.7 (2008): 267-293. <http://eudml.org/doc/222342>.

@article{Thieme2008,
abstract = { A possible control strategy against the spread of an infectious disease is the treatment with antimicrobials that are given prophylactically to those that had contact with an infective person. The treatment continues until recovery or until it becomes obvious that there was no infection in the first place. The model considers susceptible, treated uninfected exposed, treated infected, (untreated) infectious, and recovered individuals. The overly optimistic assumptions are made that treated uninfected individuals are not susceptible and treated infected individuals are not infectious. Since treatment lengths are considered that have an arbitrary distribution, the model system consists of ordinary differential and integral equations. We study the impact of the treatment length distribution on the large-time behavior of the model solutions, namely whether the solutions converge to an equilibrium or whether they are driven into undamped oscillations. },
author = {Thieme, H. R., Tridane, A., Kuang, Y.},
journal = {Mathematical Modelling of Natural Phenomena},
keywords = {basic reproduction number; standard incidence; (class) age structure; distributed time delay; disease persistence; global stability of endemic equilibria; instability; periodic solutions; frequency domain; standard (or frequency-dependent) incidence; distributed time delay; disease extinction; endemic equilibria; semiflow; compact attractor},
language = {eng},
month = {10},
number = {7},
pages = {267-293},
publisher = {EDP Sciences},
title = {An Epidemic Model With Post-Contact Prophylaxis of Distributed Length II. Stability and Oscillations if Treatment is Fully Effective},
url = {http://eudml.org/doc/222342},
volume = {3},
year = {2008},
}

TY - JOUR
AU - Thieme, H. R.
AU - Tridane, A.
AU - Kuang, Y.
TI - An Epidemic Model With Post-Contact Prophylaxis of Distributed Length II. Stability and Oscillations if Treatment is Fully Effective
JO - Mathematical Modelling of Natural Phenomena
DA - 2008/10//
PB - EDP Sciences
VL - 3
IS - 7
SP - 267
EP - 293
AB - A possible control strategy against the spread of an infectious disease is the treatment with antimicrobials that are given prophylactically to those that had contact with an infective person. The treatment continues until recovery or until it becomes obvious that there was no infection in the first place. The model considers susceptible, treated uninfected exposed, treated infected, (untreated) infectious, and recovered individuals. The overly optimistic assumptions are made that treated uninfected individuals are not susceptible and treated infected individuals are not infectious. Since treatment lengths are considered that have an arbitrary distribution, the model system consists of ordinary differential and integral equations. We study the impact of the treatment length distribution on the large-time behavior of the model solutions, namely whether the solutions converge to an equilibrium or whether they are driven into undamped oscillations.
LA - eng
KW - basic reproduction number; standard incidence; (class) age structure; distributed time delay; disease persistence; global stability of endemic equilibria; instability; periodic solutions; frequency domain; standard (or frequency-dependent) incidence; distributed time delay; disease extinction; endemic equilibria; semiflow; compact attractor
UR - http://eudml.org/doc/222342
ER -

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