Our data compilation is finished. Our research and analysis work continues through May.
Our final data collection shift took place on March 7, 2021. Don’t worry, all our data is still here.
We would like to thank the hundreds of volunteers who,
for the last 12 months, collected and published
the most complete data about COVID-19 in the US.
The COVID Tracking Project was cited in more than 1,000 academic papers, including major medical journals like The New England Journal of Medicine, Nature, and JAMA.
Our data was used by two presidential administrations and an array of federal agencies, including the CDC, HHS, and FDA.
Federal lawmakers used our data in at least 11 letters demanding answers on the pandemic response from government leaders and commercial labs.
And our data was cited in over 7,700 news stories in publications including The New York Times, The Washington Post, CNN, Vox, ProPublica, and many more.
Our analysis & updates
Read all our postsApril 21, 2021
Federal COVID-19 Testing Data Is Getting Better
The federal government improved its state and county-level COVID-19 PCR testing data since we analyzed it in February. Here’s an update on those changes and what we hope to see next for the data.
Read the articleFederal COVID-19 Testing Data Is Getting BetterApril 14, 2021
Measuring Our Impact at The COVID Tracking Project
Our largely volunteer-operated effort became a critical data source for journalists, scientists, academics and government officials.
Read the articleMeasuring Our Impact at The COVID Tracking ProjectApril 8, 2021
Inconsistent Reporting Practices Hampered Our Ability to Analyze COVID-19 Data. Here Are Three Common Problems We Identified.
With little consistency in how states defined, published, and presented COVID-19 data, it is difficult to compare situations across states.
Read the articleInconsistent Reporting Practices Hampered Our Ability to Analyze COVID-19 Data. Here Are Three Common Problems We Identified.April 7, 2021
Releasing Our Annotations on State COVID-19 Current Hospitalizations Data
As part of our wind-down process, we are releasing a one-time snapshot of our research into states’ current hospitalization definitions.
Read the articleReleasing Our Annotations on State COVID-19 Current Hospitalizations DataApril 1, 2021
How Not to Interpret COVID-19 Data
Beware of dating schemes, data dumps, weather events and other issues that can lead to mistakes that confuse the public.
Read the articleHow Not to Interpret COVID-19 DataMarch 31, 2021
The Decisions We Made
Looking back at what made The COVID Tracking Project work.
Read the articleThe Decisions We Made