کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7379001 1480129 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel epidemic spreading model with decreasing infection rate based on infection times
ترجمه فارسی عنوان
یک مدل گسترش جهانی اپیدمی با کاهش میزان عفونت براساس میزان آلودگی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی
A new epidemic spreading model where individuals can be infected repeatedly is proposed in this paper. The infection rate decreases according to the times it has been infected before. This phenomenon may be caused by immunity or heightened alertness of individuals. We introduce a new parameter called decay factor to evaluate the decrease of infection rate. Our model bridges the Susceptible-Infected-Susceptible(SIS) model and the Susceptible-Infected-Recovered(SIR) model by this parameter. The proposed model has been studied by Monte-Carlo numerical simulation. It is found that initial infection rate has greater impact on peak value comparing with decay factor. The effect of decay factor on final density and threshold of outbreak is dominant but weakens significantly when considering birth and death rates. Besides, simulation results show that the influence of birth and death rates on final density is non-monotonic in some circumstances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 444, 15 February 2016, Pages 1041-1048
نویسندگان
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