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JHU has stopped collecting data as of

03 / 10 / 2023

After three years of around-the-clock tracking of COVID-19 data from...

By Region

Data Notes

General Notes

September 14, 2021

  • Reduced counts in U.S. cases and deaths are the result of states and territories not reporting the information for some or all of the weekend. Those states and territories are: Alaska, Colorado, Connecticut, District of Columbia, Florida, Georgia, Guam, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Hampshire, New Mexico, North Carolina, Northern Mariana Islands, Oklahoma, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, U.S. Virgin Islands, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. Typically, these states" Monday updates include the weekend totals.

Region Notes

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November 10, 2020

Puerto Rico

  • On November 9, 2020, we modified the case data for Puerto Rico to line up with the Commonwealth's revised "probables" reporting. Previous reporting included serology results in the probables field reported on their dashboard. On Novermber 7th, reporting changed to define probables as anitgen testing-backed results. Historical data has been corrected through March. This modification reduces the overall the case count for Puerto Rico; the cumulative count dropped by approximately 38k on the 9th.