Covid-19 Modelling

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For Chile as of 2020-06-27, the best fit SEIR model is shown as:

Optimized SEIR model for the current corona virus evolution for Chile

Associated operational parameters:

\(S_0\) = 7.354934e+06 cases;

\(\beta\) = 5.944204e-06 (cases days)\(^{-1}\);

\(\sigma\) = 8.868718e-04 days\(^{-1}\);

\(\gamma\) = 1.025511e-01 days\(^{-1}\).

These translate into the more familiar parameters:

R = 426.316436;

T\(_{inc}\) = 1127.558710 days;

T\(_{inf}\) = 9.751234 days.

The additional initial values were:

\(E_0\) = 1.00e+00, \(I_0\) = 1.00e+00, \(R_0\) = 0.00e+00.

As a measure of quality of the convergence of the annealing algorithm, the final error measure was:

\(\epsilon\) = 1.443081e+04 cases; with a relative error, \(\epsilon/S_0\) = 1.96e-03 or 0.2%

Leslie J. Mulder
401 - 2071 Kingsway Ave,
Port Coquitlam, B.C,
Canada V3C 6N2

Copyright © 2020 Leslie J. Mulder