Covid-19 Modelling

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For Sweden as of 2020-07-09, the best fit SEIR model is shown as:

Optimized SEIR model for the current corona virus evolution for Sweden

Associated operational parameters:

\(S_0\) = 7.207155e+06 cases;

\(\beta\) = 4.204143e-05 (cases days)\(^{-1}\);

\(\sigma\) = 1.037819e-04 days\(^{-1}\);

\(\gamma\) = 6.846714e-03 days\(^{-1}\).

These translate into the more familiar parameters:

R = 44254.676179;

T\(_{inc}\) = 9635.595958 days;

T\(_{inf}\) = 146.055456 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:

\(\epsilon\) = 4.785354e+03 cases; with a relative error, \(\epsilon/S_0\) = 6.64e-04 or 0.1%

Leslie J. Mulder
email: lesm@velocity.ca
401 - 2071 Kingsway Ave,
Port Coquitlam, B.C,
Canada V3C 6N2

Copyright © 2020 Leslie J. Mulder