The CDC -data will update as soon as they are reviewed and verified, oftentimes before 8 pm ET. However, daily updates might be delayed due to delays in reported data.
Data Sources, References & Notes: The case classifications for COVID-19, a nationally notifiable disease, are described in an updated interim COVID-19 position statement and case definition issued by the Council of State and Territorial Epidemiologists on August 5, 2020. However, there is some variation in how jurisdictions implement these case classifications. More information on how CDC collects COVID-19 case surveillance data can be found at CDC’s COVID-19 FAQ webpage.
Total cases are based on aggregate counts of COVID-19 cases reported by state and territorial jurisdictions to the Centers for Disease Control and Prevention (CDC) since January 21, 2020, with the exception of persons repatriated to the United States from Wuhan, China, and Japan. All displayed counts include confirmed COVID-19 cases and deaths as reported by U.S. states, U.S. territories, New York City (NYC), and the District of Columbia from the previous day. Counts for certain jurisdictions also include probable COVID-19 cases and deaths. Counts for NYC and New York State are shown separately; data for New York State show total cases and deaths for the state excluding data for NYC. COVID-19 case and death data that are not available to CDC are denoted by N/A. For aggregate state-level data, CDC calculates the number of new cases or deaths each day by calculating the difference in cumulative counts reported by the state from the day before. Historical data are not typically updated unless requested by the state. Therefore, the number of historical cases and deaths presented on CDC’s website reflect the date the data was reported to CDC and not necessarily the date the case or death was recorded in the state.
The map can be modified to showcases and deaths per 100,000 people in the last 7 days, total new cases and deaths in the last 7 days, total cases and deaths since January 21, 2020, and rates for cases (cases/100,000 people) and deaths (deaths/100,000). Totals per 100,000 people in the last 7 days are calculated as the 7-day moving average of new cases or deaths (current day + 6 preceding days divided by 7) per 100,000 people using the U.S. Census Bureau, 2019* American Community Survey 1-year estimates. Rates per 100,000 are calculated as the total cases or deaths per 100,000 people using the U.S. Census Bureau, 2019* American Community Survey 1-year estimates.
https://covid.cdc.gov/covid-data-tracker/#cases_casesper100klast7days
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