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Maps & Trends

State Reporting Frequencies

Since the start of the pandemic, U.S. states and territories have used different approaches to reporting data about COVID-19 cases, deaths, tests, and vaccines. The lack of uniformity has complicated efforts to track SARS-CoV-2 in near real time as it has spread across the United States. That tracking has been aggravated further as states have been reducing the frequency of reporting. The graphics here detail how many states report data on which days across each of those four critical categories. Hover over a state to display the days it reports data.

Days per week data is reported


Data Source: JHU CCI