[Scilab-users] Corona modelling

[Rafael Guerra]

Hi,

In Wikipedia article " Mathematical modelling of infectious disease " it says that people counted in R have been infected and removed from the disease due to immunization or death. 

I am not an expert but the fatality ratio could be defined as a percentage of the people infected 'I'.

Regards,
Rafael

-----Original Message-----
From: users <users-bounces at lists.scilab.org> On Behalf Of Vesela Pasheva
Sent: Monday, March 30, 2020 5:13 PM
To: Users mailing list for Scilab <users at lists.scilab.org>
Subject: Re: [Scilab-users] Corona modelling

Hello colleagues,

I would like to know whether the variable D of dead persons could be 
included in the model considered. Up till now the model considers the 
variables S - susceptible, I - infected and R - recovered. Where do the 
Dead persons D go.
Of course i such case the system will be of four differential equations.

Best regards

Vesela

На 30-03-2020 15:38, Heinz Nabielek написа:
>> On 30.03.2020, at 08:13, Stéphane Mottelet
>> <stephane.mottelet at utc.fr> wrote:
> 
>> Hello Heinz,
>> 
>> Here is an interactive version (made for my children last week...) :
>> 
>> // Confinement COVID-19 !
>> // Stephane MOTTELET, UTC
>> // Tue Mar 24 08:55:03 CET 2020....
> 
> Great many thanks:
> 
> o The SIR model is great and can be readily understood.
> 
> o Scilab is great: one line of code where big EXCEL sheet produced a
> mess.
> 
> o Scilab friends and colleagues are great: instantaneous and real
> help.
> 
> If the modelling is anywhere near to right, it will soon be over in
> Austria (cyan circles are recorded infections). But this is likely
> over-optimistic.....
> Heinz
> 
> ______________
> Dr Heinz Nabielek
> Schüttelstrasse 77A/11
> A-1020 Wien, Österreich
> Tel +43 1 276 56 13
> cell +43 677 616 349 22
> heinznabielek at me.com
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