Dynamical analysis for a hepatitis B transmission model with immigration and infection age
Hepatitis B virus (HBV) is responsible for an estimated 378 million infections worldwide and 620, 000 deaths annually. Safe and effective vaccination programs have been available for decades, but coverage is limited due to economic and social factors. We investigate the effect of immigration and inf...
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AIMS Press
2018-11-01
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| Series: | Mathematical Biosciences and Engineering |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/mbe.2018060 |
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| author | Suxia Zhang Hongbin Guo Robert Smith? |
| author_facet | Suxia Zhang Hongbin Guo Robert Smith? |
| author_sort | Suxia Zhang |
| collection | DOAJ |
| description | Hepatitis B virus (HBV) is responsible for an estimated 378 million infections worldwide and 620, 000 deaths annually. Safe and effective vaccination programs have been available for decades, but coverage is limited due to economic and social factors. We investigate the effect of immigration and infection age on HBV transmission dynamics, incorporating age-dependent immigration flow and vertical transmission. The mathematical model can be used to describe HBV transmission in highly endemic regions with vertical transmission and migration of infected HBV individuals. Due to the effects of immigration, there is no disease-free equilibrium or reproduction number. We show that the unique endemic equilibrium exists only when immigration into the infective class is measurable. The smoothness and attractiveness of the solution semiflow are analyzed, and boundedness and uniform persistence are determined. Global stability of the unique endemic equilibrium is shown by a Lyapunov functional for a special case. |
| format | Article |
| id | doaj-art-99b5cbbad6384459a5826b9081d5cbf3 |
| institution | Kabale University |
| issn | 1551-0018 |
| language | English |
| publishDate | 2018-11-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | Mathematical Biosciences and Engineering |
| spelling | doaj-art-99b5cbbad6384459a5826b9081d5cbf32025-01-24T02:41:08ZengAIMS PressMathematical Biosciences and Engineering1551-00182018-11-011561291131310.3934/mbe.2018060Dynamical analysis for a hepatitis B transmission model with immigration and infection ageSuxia Zhang0Hongbin Guo1Robert Smith?2School of Science, Xi'an University of Technology, Xi'an 710048, ChinaDepartment of Mathematics and Statistics, The University of Ottawa, 585 King Edward Ave, Ottawa, ON K1N 6N5, CanadaDepartment of Mathematics and Faculty of Medicine, The University of Ottawa, 585 King Edward Ave, Ottawa, ON K1N 6N5, CanadaHepatitis B virus (HBV) is responsible for an estimated 378 million infections worldwide and 620, 000 deaths annually. Safe and effective vaccination programs have been available for decades, but coverage is limited due to economic and social factors. We investigate the effect of immigration and infection age on HBV transmission dynamics, incorporating age-dependent immigration flow and vertical transmission. The mathematical model can be used to describe HBV transmission in highly endemic regions with vertical transmission and migration of infected HBV individuals. Due to the effects of immigration, there is no disease-free equilibrium or reproduction number. We show that the unique endemic equilibrium exists only when immigration into the infective class is measurable. The smoothness and attractiveness of the solution semiflow are analyzed, and boundedness and uniform persistence are determined. Global stability of the unique endemic equilibrium is shown by a Lyapunov functional for a special case.https://www.aimspress.com/article/doi/10.3934/mbe.2018060hepatitis b virusinfection ageimmigration ageglobal stabilitylyapunov functional |
| spellingShingle | Suxia Zhang Hongbin Guo Robert Smith? Dynamical analysis for a hepatitis B transmission model with immigration and infection age Mathematical Biosciences and Engineering hepatitis b virus infection age immigration age global stability lyapunov functional |
| title | Dynamical analysis for a hepatitis B transmission model with immigration and infection age |
| title_full | Dynamical analysis for a hepatitis B transmission model with immigration and infection age |
| title_fullStr | Dynamical analysis for a hepatitis B transmission model with immigration and infection age |
| title_full_unstemmed | Dynamical analysis for a hepatitis B transmission model with immigration and infection age |
| title_short | Dynamical analysis for a hepatitis B transmission model with immigration and infection age |
| title_sort | dynamical analysis for a hepatitis b transmission model with immigration and infection age |
| topic | hepatitis b virus infection age immigration age global stability lyapunov functional |
| url | https://www.aimspress.com/article/doi/10.3934/mbe.2018060 |
| work_keys_str_mv | AT suxiazhang dynamicalanalysisforahepatitisbtransmissionmodelwithimmigrationandinfectionage AT hongbinguo dynamicalanalysisforahepatitisbtransmissionmodelwithimmigrationandinfectionage AT robertsmith dynamicalanalysisforahepatitisbtransmissionmodelwithimmigrationandinfectionage |