In just one month, the United States went from less than 50 cases of the coronavirus that causes COVID-19 to more than 185,000. That same month, a pandemic was declared worldwide and 32 states issued stay-at-home orders. A lot can happen in 31 days, it turns out.

This video is all about giving you a visual idea of just how dramatic the spread of COVID-19 was in the U.S. during March 2020. Watch as the states slowly turn yellow (indicating they’ve reached 100 cases) and then vibrant red (indicating more than 1,000 cases) to, in the case of New York, a dark black (indicating more than 50,000 cases). All the while, we’ll pull out key dates from the month to highlight what measures were being undertaken to keep the public safe from the deadly disease.

You can find the video at the top of this article. Can’t see it? You can also watch it directly on YouTube at this link.

The information for the video came from Johns Hopkins University’s COVID-19 database. You can see their visualization of the information at arcgis.com.

Want more charts, graphs and maps about the pandemic? Check out pennlive.com/coronavirus/data, which has a running tally of the number of cases and deaths in the country and state. It also breaks down the number of cases in Pennsylvania by county and, in some cases, neighborhood.

The video has been updated to correct a typo.

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