Designing and modelling of the model

[NiTo]

Hi Folks,

Help me with the first visulaztion from the link below:

https://covid.cdc.gov/covid-data-tracker/#covidnet-hospitalization-network

Data set is available in the page, you can download it and start working on designing and modelling of the design and visualiztion of the app.

I am pretty confident that I can take care of 2nd, 3rd and 4th visualization. Right now  I am struck at the first one. Help me.

Thanks