Bifurcation analysis and global dynamics of a mathematical model of antibiotic resistance in hospitals
Bifurcation analysis and global dynamics of a mathematical model of antibiotic resistance in hospitals
复制标题
医院抗生素耐药性数学模型的分岔分析和全局动力学
DOI:
10.1007/s00285-017-1128-3
复制
发表时间:
2016-09
影响因子:
1.9
通讯作者:
Zhao Yulin
中科院分区:
文献类型:
--
作者:
Cen Xiuli;Feng Zhilan;Zheng Yiqiang;Zhao Yulin
Antibiotic-resistant bacteria have posed a grave threat to public health by causing a number of nosocomial infections in hospitals. Mathematical models have been used to study transmission dynamics of antibiotic-resistant bacteria within a hospital and the measures to control antibiotic resistance in nosocomial pathogens. Studies presented in Lipstich et al. (Proc Natl Acad Sci 97(4):1938–1943, 2000) and Lipstich and Bergstrom (Infection control in the ICU environment. Kluwer, Boston, 2002) have provided valuable insights in understanding the transmission of antibiotic-resistant bacteria in a hospital. However, their results are limited to numerical simulations of a few different scenarios without analytical analyses of the models in broader parameter regions that are biologically feasible. Bifurcation analysis and identification of the global stability conditions can be very helpful for assessing interventions that are aimed at limiting nosocomial infections and stemming the spread of antibiotic-resistant bacteria. In this paper we study the global dynamics of the mathematical model of antibiotic resistance in hospitals considered in Lipstich et al. (2000) and Lipstich and Bergstrom (2002). The invasion reproduction numberof antibiotic-resistant bacteria is derived, and the relationship betweenand two control reproduction numbers of sensitive bacteria and resistant bacteria (and) is established. More importantly, we prove that a backward bifurcation may occur atwhen the model includes superinfection, which is not mentioned in Lipstich and Bergstrom (2002). More specifically, there exists a new threshold, such that if, then the system can have two positive interior equilibria, which leads to an interesting bistable phenomenon. This may have critical implications for controlling the antibiotic-resistance in a hospital.
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DOI:
10.1007/978-1-4615-0781-9_18
发表时间:
2001
期刊:
--
影响因子:
--
作者:
M. Lipsitch;Carl T. Bergstrom
通讯作者:
M. Lipsitch;Carl T. Bergstrom
影响因子:
2.8
作者:
Chow, Karen;Wang, Xiaohong;Castillo-Chavez, Carlos
通讯作者:
Castillo-Chavez, Carlos
DOI:
10.1515/9781400875955
发表时间:
2016
期刊:
--
影响因子:
--
作者:
T. Burton
通讯作者:
T. Burton
DOI:
10.1090/mmono/066
发表时间:
2009-02
期刊:
--
影响因子:
--
作者:
Yen-chʿien Yeh;Suihua Cai
通讯作者:
Yen-chʿien Yeh;Suihua Cai
DOI:
10.1073/pnas.97.4.1938
发表时间:
2000-02-15
影响因子:
11.1
作者:
Lipsitch, M;Bergstrom, CT;Levin, BR
通讯作者:
Levin, BR