کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7222183 1470389 2018 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Complex Dynamics of a host-parasite model with both horizontal and vertical transmissions in a spatial heterogeneous environment
ترجمه فارسی عنوان
دینامیک پیچیده یک مدل انگل میزبان با هر دو انتقال افقی و عمودی در یک محیط ناهمگن فضایی
کلمات کلیدی
انتقال عمودی، ناهمگونی، بدون انگل، بدون حساس اندمیک
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
In this paper, we investigate the dynamical outcomes of a host-parasite model incorporating both horizontal and vertical transmissions in a spatial heterogeneous environment analytically and numerically. Our study provides valuable insights in two aspects: Mathematically, we propose three threshold parameters, the demographic reproduction number Rd, the horizontal transmission reproduction number R0h and the vertical transmission reproduction number R0v, to identify the conditions that lead to disease-free dynamics, or susceptible-free dynamics, or endemic dynamics. Epidemiologically, we find that both host population movements and spatial heterogeneity strongly affect the disease dynamics of our proposed epidemic model: (1) the larger random mobility can result in 100% infection prevalence; and (2) the heterogeneity tends to enhance the persistence of the infected hosts with uninfected ones. As a consequence, our work suggests that, in order to control the invasion of the parasite, different preventive measures can be implemented in different regions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nonlinear Analysis: Real World Applications - Volume 40, April 2018, Pages 444-465
نویسندگان
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