Physics Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
INToo Solutions, 202-6940 East Blvd, Vancouver, BC, V6M 3V5, Canada.
Sci Rep. 2021 Nov 22;11(1):22664. doi: 10.1038/s41598-021-00687-8.
Many published infection prediction models, such as the extended SEIR (E-SEIR) model, are used as a study and report tool to aid health authorities to manage the epidemic plans successfully. These models face many challenges, mainly the reliability of the infection rate predictions related to the initial boundary conditions, formulation complexity, lengthy computations, and the limited result scope. We attribute these challenges to the absence of a solution framework that encapsulates the interacted activities that manage: the infection growth process, the infection spread process and the health effort process. In response to these challenges, we formulated such a framework first as the basis of our new convolution prediction model (CPM). CPM links through convolution integration, three temporal profile levels: input (infected and active cases), transformational (health efforts), and output functions (recovered, quarantine, and death cases). COVID-19 data defines the input and output temporal profiles; hence it is possible to deduce the cumulative efforts temporal response (CETR) function for the health effort level. The new CETR function determines the health effort level over a period. Also, CETR plays a role in predicting the evolution of the underlying infection and active cases profiles without a system of differential equations. This work covers three countries: Saudi Arabia, France, and Canada.
许多已发表的感染预测模型,如扩展 SEIR(E-SEIR)模型,被用作研究和报告工具,以帮助卫生当局成功管理疫情计划。这些模型面临许多挑战,主要是与初始边界条件、公式复杂性、冗长计算和有限的结果范围相关的感染率预测的可靠性。我们将这些挑战归因于缺乏一个解决方案框架,该框架封装了管理以下交互活动的内容:感染增长过程、感染传播过程和卫生努力过程。为了应对这些挑战,我们首先制定了这样一个框架,作为我们新的卷积预测模型(CPM)的基础。CPM 通过卷积积分将三个时间剖面级别联系起来:输入(感染和活动病例)、转换(卫生努力)和输出函数(康复、隔离和死亡病例)。COVID-19 数据定义了输入和输出时间剖面;因此,有可能推导出卫生努力级别随时间的累积努力响应(CETR)函数。新的 CETR 函数确定了一段时间内的卫生努力级别。此外,CETR 在不使用微分方程系统的情况下,在预测潜在感染和活动病例曲线的演变方面发挥作用。这项工作涵盖了三个国家:沙特阿拉伯、法国和加拿大。