build me a simulate the spread of COVID-19 in some specified countries, using a set of data that are provided to you by using Markov Chain process

to simulate the spread of COVID-19 in some specified countries, using a set of data that are provided to you. For this matter, you need to create a sample population of people according to the data provided. This should be done according to the age structure in each country.Then for each individual in the sample you run a simulation (a Markov Chain). The Markov chain simulation should consider 5 states (H,I,S,M,D) which are described later. This result needs to be exported to a CSV file. At the end you need to accumulate data for each specified country and each date (see the Output section). The result should be saved as (a3-covid-summary-timeseries.csv). Then you need to call create_plot() function, provided to you ,to create a chart (a3-covid-simulation.png).