[2] VAN D D,CHE P,WATMOUGH J. Reproduction numbers and sub-threshold endemic equilibrium for compartmental models of disease transmission[J]. Math Biosci,2002,180:29-48.
[3] 马知恩,周义仓,王稳地,等. 传染病动力学数学建模与研究[M]. 北京:科学出版社,2004.
[4] WHITE L J,MEDLEY G F. Microparasite population dynamics and continuous immunity[J]. Proc R Soc Lond B,1998,265:1977-1983.
[5] GOMES M G M,WHITE L J,MEDLEY G F. Infection,reinfection,and vaccination under suboptimal immune protection:epidemiological perspectives[J]. Theor Biol,2004,228:539-549.
[6] GOMES M G M,MARGHERI A,MEDLEY G F,et al. Dynamical behaviour of epidemiological models with sub-optimal immunity and nonlinear incidence[J]. Math Biol,2005,51:414-430.
[7] 庞建华. 具有一般恢复率的传染病模型及乙肝数学模型的研究[D]. 南京:南京师范大学,2012.
[8] 马知恩,周义仓. 常微分方程定性与稳定性方法[M]. 北京:科学出版社,2001.