Tracking Rt of COVID-19 Vaccine Effectiveness Using Kalman Filter and SIRD Model

In this paper, a SIRD model is adapted to study the vaccine’s impact on the spread of coronavirus (COVID19) spread in Lebanon. To describe the epidemic development across the country, a Kalman filter is integrated with the SIRD model in order to estimate the time-varying reproduction number Rt - is the most important indicator that predicts the severity of an epidemic outbreak. Rt denotes the number of healthy persons to whom an infected person can spread the disease. The results show a reduction in the spread of the pandemic after employing the vaccine. All the data and relevant codebase are available at https://www.moph.gov.lb