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. 2020 Oct 8;135(10):795. doi: 10.1140/epjp/s13360-020-00819-5

Fig. 11.

Fig. 11

Profile for the symptomatic I(t) population using the proposed COVID-19 model under the a Caputo and b ABC operators with different values of δ (transmission rate) while taking ϑ=0.853