A fractional-order delay dierential SEIR model for COVID-19: Stability analysis and Hopf bifurcation

  • Santoshi Panigrahi Siksha ‘O’ Anusandhan (Deemed to be University)
  • Sunita Chand Siksha ‘O’ Anusandhan (Deemed to be University)
  • S. Balamuralitharan


In this manuscript, we study a fractional order time delay SEIR model of COVID-19 disease. Some conditions on stability and Hopf bifurcation have been derived for the model by using Laplace transformation. Further numerical simulation has been carried out for the purpose of better understanding of our results.