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  1. Article ; Online: Modeling and analysis of the dynamics of novel coronavirus (COVID-19) with Caputo fractional derivative.

    Ali, Aatif / Alshammari, Fehaid Salem / Islam, Saeed / Khan, Muhammad Altaf / Ullah, Saif

    Results in physics

    2020  Volume 20, Page(s) 103669

    Abstract: ... Therefore, we study the coronavirus disease in this paper by exploring the dynamics of COVID-19 infection using ... The new emerged infectious disease that is known the coronavirus disease (COVID-19), which is ... tool for the COVID-19 data recorded in Pakistan since March 1 till June 30, 2020 and show ...

    Abstract The new emerged infectious disease that is known the coronavirus disease (COVID-19), which is a high contagious viral infection that started in December 2019 in China city Wuhan and spread very fast to the rest of the world. This infection caused million of infected cases globally and still pose an alarming situation for human lives. Pakistan in Asian countries is considered the third country with higher number of cases of coronavirus with more than 200,000. Recently, many mathematical models have been considered to better understand the coronavirus infection. Most of these models are based on classical integer-order derivative which can not capture the fading memory and crossover behavior found in many biological phenomena. Therefore, we study the coronavirus disease in this paper by exploring the dynamics of COVID-19 infection using the non-integer Caputo derivative. In the absence of vaccine or therapy, the role of non-pharmaceutical interventions (NPIs) is examined on the dynamics of theCOVID-19 outbreak in Pakistan. First, we construct the model in integer sense and then apply the fractional operator to have a generalized model. The generalized model is then used to present the detailed theoretical results. We investigate the stability of the model for the case of fractional model using a nonlinear fractional Lyapunov function of Goh-Voltera type. Furthermore, we estimate the values of parameters with the help of least square curve fitting tool for the COVID-19 data recorded in Pakistan since March 1 till June 30, 2020 and show that our considered model give an accurate prediction to the real COVID-19 statistical cases. Finally, numerical simulations are presented using estimated parameters for various values of the fractional order of the Caputo derivative. From the simulation results it is found that the fractional order provides more insights about the disease dynamics.
    Language English
    Publishing date 2020-12-14
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2631798-9
    ISSN 2211-3797 ; 2211-3797
    ISSN (online) 2211-3797
    ISSN 2211-3797
    DOI 10.1016/j.rinp.2020.103669
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Modeling and simulation of the novel coronavirus in Caputo derivative.

    Awais, Muhammad / Alshammari, Fehaid Salem / Ullah, Saif / Khan, Muhammad Altaf / Islam, Saeed

    Results in physics

    2020  Volume 19, Page(s) 103588

    Abstract: ... the transmission patterns of this novel infection. this paper, we investigate the dynamics of COVID-19 using ... coronavirus. The COVID-19 pandemic is an inciting panic for human health and economy as there is no vaccine or ... The Coronavirus disease or COVID-19 is an infectious disease caused by a newly discovered ...

    Abstract The Coronavirus disease or COVID-19 is an infectious disease caused by a newly discovered coronavirus. The COVID-19 pandemic is an inciting panic for human health and economy as there is no vaccine or effective treatment so far. Different mathematical modeling approaches have been suggested to analyze the transmission patterns of this novel infection. this paper, we investigate the dynamics of COVID-19 using the classical Caputo fractional derivative. Initially, we formulate the mathematical model and then explore some the basic and necessary analysis including the stability results of the model for the case when
    Keywords covid19
    Language English
    Publishing date 2020-11-17
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2631798-9
    ISSN 2211-3797 ; 2211-3797
    ISSN (online) 2211-3797
    ISSN 2211-3797
    DOI 10.1016/j.rinp.2020.103588
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: Modeling and Simulation of the Novel Coronavirus in Caputo Derivative

    Awais, Muhammad Alshammari Fehaid Salem Ullah Saif Khan Muhammad Altaf Islam Saeed

    Results in Physics

    Abstract: ... the transmission patterns of this novel infection this paper, we investigate the dynamics of COVID-19 using ... coronavirus The COVID-19 pandemic is an inciting panic for human health and economy as there is no vaccine or ... The Coronavirus disease or COVID-19 is an infectious disease caused by a newly discovered ...

    Abstract The Coronavirus disease or COVID-19 is an infectious disease caused by a newly discovered coronavirus The COVID-19 pandemic is an inciting panic for human health and economy as there is no vaccine or effective treatment so far Different mathematical modeling approaches have been suggested to analyze the transmission patterns of this novel infection this paper, we investigate the dynamics of COVID-19 using the classical Caputo fractional derivative Initially, we formulate the mathematical model and then explore some the basic and necessary analysis including the stability results of the model for the case when R0<1 Despite the basic analysis, we consider the real cases of coronavirus in China from January 11, 2020 to April 9, 2020 and estimated the basic reproduction number as R0≈4 95 The present findings show that the reported data is accurately fit the proposed model and consequently, we obtain more realistic and suitable parameters Finally, the fractional model is solved numerically using a numerical approach and depicts many graphical results for the fractional order of Caputo operator Furthermore, some key parameters and their impact on the disease dynamics are shown graphically
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #927407
    Database COVID19

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  4. Article: Modeling and analysis of COVID-19 epidemics with treatment in fractional derivatives using real data from Pakistan

    Naik, P. A. / Yavuz, M. / Qureshi, S. / Zu, J. / Townley, S.

    Eur Phys J Plus

    Abstract: ... Novel coronavirus called COVID-19 is a newly emerged virus that appeared in many countries of the world ... operator and the Atangana-Baleanu-Caputo operator for the transmission of COVID-19 epidemic is proposed and ... The numerical solution of the proposed COVID-19 fractional-order model under the Caputo operator is obtained ...

    Abstract Coronaviruses are a large family of viruses that cause different symptoms, from mild cold to severe respiratory distress, and they can be seen in different types of animals such as camels, cattle, cats and bats Novel coronavirus called COVID-19 is a newly emerged virus that appeared in many countries of the world, but the actual source of the virus is not yet known The outbreak has caused pandemic with 26,622,706 confirmed infections and 874,708 reported deaths worldwide till August 31, 2020, with 17,717,911 recovered cases Currently, there exist no vaccines officially approved for the prevention or management of the disease, but alternative drugs meant for HIV, HBV, malaria and some other flus are used to treat this virus In the present paper, a fractional-order epidemic model with two different operators called the classical Caputo operator and the Atangana-Baleanu-Caputo operator for the transmission of COVID-19 epidemic is proposed and analyzed The reproduction number R0 is obtained for the prediction and persistence of the disease The dynamic behavior of the equilibria is studied by using fractional Routh-Hurwitz stability criterion and fractional La Salle invariant principle Special attention is given to the global dynamics of the equilibria Moreover, the fitting of parameters through least squares curve fitting technique is performed, and the average absolute relative error between COVID-19 actual cases and the model's solution for the infectious class is tried to be reduced and the best fitted values of the relevant parameters are achieved The numerical solution of the proposed COVID-19 fractional-order model under the Caputo operator is obtained by using generalized Adams-Bashforth-Moulton method, whereas for the Atangana-Baleanu-Caputo operator, we have used a new numerical scheme Also, the treatment compartment is included in the population which determines the impact of alternative drugs applied for treating the infected individuals Furthermore, numerical simulations of the model and their graphical presentations are performed to visualize the effectiveness of our theoretical results and to monitor the effect of arbitrary-order derivative
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #910246
    Database COVID19

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