Journal of University of Science and Technology of China ›› 2018, Vol. 48 ›› Issue (8): 631-636.DOI: 10.3969/j.issn.0253-2778.2018.08.005

• Original Paper • Previous Articles     Next Articles

Dynamics analysis of an impulsive stochastic SIS epidemic model with standard incidence

YU Jiajia,LING Lin,DONG Jinhua,JIANG Guirong   

  1. 1. School of Mathematics and Computing Science,Guilin University of Electronic Technology,Guilin 541004,China; 2. College of Science,Guilin University of Aerospace Technology,Guilin 541004,China
  • Received:2017-07-17 Revised:2018-01-08 Accepted:2018-01-08 Online:2018-08-31 Published:2018-01-08

Abstract: Random disturbance, birth pulse and pulse treatments were simultaneously considered to build a class of SIS epidemic model with standard incidence.By applying the theory of stochastic differential equation, the sufficient conditions for the stochastic stability of the trivial solution were obtained.The sufficient conditions for the existence of the disease free solution were obtained by using a discrete map. The stochastic extinction of the disease was investigated by using the It formula.Moreover, numerical simulation was conducted to verify the theoretical analysis.

Key words: stochastic SIS epidemic model, standard incidence, birth pulses, pulse treatment

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