Coronavirus pandemic: daily updated research and data.
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Coronavirus Source Data

The data on the coronavirus pandemic is updated daily. Last update: May 27, 2020 (11:00, London time).

Our complete COVID-19 dataset is a collection of the COVID-19 data maintained by Our World in Data. It is updated daily and includes data on confirmed cases, deaths, and testing.

All our data can be downloaded.

You find the complete Our World in Data COVID-19 dataset—together with a complete overview of our sources and moreat our GitHub repository here.

Our work belongs to everyone

Since the beginning of the pandemic we have also provided individual files of our daily updates of confirmed cases and deaths from the European CDC. We will continue to provide them here for consistency.

Deaths and cases: our data source

Our World in Data relies on data from the European CDC

In this document and the many embedded and linked charts we report and visualize the data from the European Center for Disease Prevention and Control (ECDC).1 We make the data used in our charts and tables downloadable as a complete and structured .csv file here.

The European CDC publishes daily statistics on the COVID-19 pandemic. Not just for Europe, but for the entire world. We rely on the ECDC as they collect and harmonize data from around the world which allows us to compare what is happening in different countries. The European CDC data provides a global perspective on the evolving pandemic.

The European Centre for Disease Prevention and Control ECDC provides three statistical resources on the COVID-19 pandemic:

The ECDC makes all their data available in a daily updated clean downloadable file. This gets updated daily reflecting data collected up to 6:00 and 10:00 CET.

The European CDC collects and aggregates data from countries around the world. The most up-to-date data for any particular country is therefore typically available earlier via the national health agencies than via the ECDC. This lag between nationally available data and the ECDC data is not very long as the ECDC publishes new data daily. But it can be several hours.

Testing: the Our World in Data testing database

Testing data is collected by Our World in Data by browsing public information from official sources. We rely on figures published on official websites, in press releases and by social media accounts of national authorities—usually governments, ministries of health, or centres for disease control.

Our testing dataset is entirely replicable: