COVID-19 pandemic has disrupted the world's health and economy and has resulted in many deaths since the first case occurred in China at the end of 2019. Moreover, The COVID-19 disease spread throughout the world including Indonesia on March 2, 2020. Coronavirus quickly spreads through droplets of phlegm through the throat to the lungs. Researchers in the medical field and the exact science are jointly examining the spread prevention and optimal control of COVID-19 disease. Due to the prevention of COVID-19 a vaccine was found in early 2021 which at the time the vaccination process was carried out worldwide against COVID-19. This paper examines the spread model of SVEIR-type COVID-19 by considering the vaccination subpopulation. In this study control of prevention efforts (and) and healing efforts are given and are analyzed with the fourth order Runge-Kutta approach. Based on numerical simulations it can be seen that using the controls can reduce the number of infected individuals in the subpopulation compared to those without control. The control can increase the number of recovered individual subpopulations.
Optimal prevention and treatment control on SVEIR type model spread of COVID-19