pushedAt 8 months ago


Covid-19 Open Data visualization platform

This project was bootstrapped with Create React App.

Available Scripts

Before you run this code you need install all requirement package first:

npm install

In the project directory, you can run:

yarn start

Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.

The page will reload if you make edits.
You will also see any lint errors in the console.

yarn test

Launches the test runner in the interactive watch mode.
See the section about running tests for more information.

yarn build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.
Your app is ready to be deployed!

See the section about deployment for more information.

yarn eject

Note: this is a one-way operation. Once you eject, you can’t go back!

If you aren’t satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.

Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.

You don’t have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.


The Covid case count data relies on data from Johns Hopkins University

The vaccines data from Milken Institute and update by ourself.

The vaccines coverage Data Source from Canada Government.


All coding file is listed under the src folder, for each file it will have a short document at the top of each file. You will also be able to find comments explain each block of code. All multimedia resources are stroged under public folder.

Learn More


You can learn more in the Create React App documentation.

To learn React, check out the React documentation.


For more type of data, you can find it at University of Toronto Libraries.


For more information related to this project. You may found at this document.

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