Fig. 2From: Stability analysis and numerical evaluations of a COVID-19 model with vaccinationThe behavior of susceptible population: Unvaccinated S(t) (left) and vaccinated \(S_v(t)\) (right) obtained via QLM-SCPSK methodology using \(\mathcal {J}=10\) and \(N=100\) on [0, 1000]Back to article page