This data visualization uses a sankey diagram to responsibly display the overall reported cases and death toll of the 2019-2020 novel COVID-19 pandemic broken down by geography.
The visualization pulls from live data but a periodically updated static dataset is used as a fallback depending on latency of your connection.
All reporting is at the country level with the exception of the United States which contains state-level detail.
The data is derived from Johns Hopkins University Center for Systems Science and Engineering (JHU CSSE).
All countries of total confirmed cases less than are grouped into one category labeled "Other" to reduce visual noise in the visualization.
The United States is further broken down by state. States with total confirmed cases below are grouped in the "Other" category.
The specific threshold values are noted in the footnotes section.
When animating through the various years, the data grouping threshold dynamically changes to ensure the visualization does not become too cluttered and difficult to read.
The "Other" category is necessary to accurately display the distributions but will fluctuate independently of the rest of the data because of the dynamic thresholds.
Total Confirmed Metric
The JHU CSSE consolidated total of confirmed cases of COVID-19. Note that confirmed cases are just that, and there are an unknown quantity of unreported COVID-19 cases.
Total Deaths Metric
The JHU CSSE consolidated total COVID-19 related deaths reported by various governmental agencies.
Total Recovered Metric
The consolidated total reported recovered cases. Keep in mind that the reporting of this metric is likely to be inconsistent across global government agencies.
Active Cases Metric
The visualization computes this number by subtracting the total recovered and total deaths from the total confirmed cases:
Active Cases = Total Confirmed - Total Deaths - Total Recovered
The visualization computes this number by dividing the Total Deaths metric by the Total Confirmed cases:
Death Rate = Total Deaths / Total Confirmed
The technical term for this ratio is the Case Fatality Rate (CFR). The CFR is different than the Crude Mortality Rate (CMR) which calculates the likelihood of someone in the general population dying from the virus.