Geographic differences in COVID-19 cases, deaths, and incidence — United States, February 12–April 7, 2020
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Geographic differences in COVID-19 cases, deaths, and incidence — United States, February 12–April 7, 2020

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  • English
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    • Corporate Authors:
      CDC COVID-19 Response Team
    • Description:
      What is already known about this topic? Community Transmission of COVID-19 was first detected in the United States in February 2020. By mid-March, all 50 states, the District of Columbia, New York City, and four U.S. territories had reported cases of COVID-19.

      What is added by this report? As of April 7, cumulative incidence of COVID-19 ranged widely across U.S. jurisdictions (from 20.6 to 915.3 cases per 100,000) and 7-day increases in incidence varied considerably (from 8.3 to 418.0). This report highlights geographic differences in cases, deaths, incidence, and changing incidence.

      What are the implications for public health practice? Monitoring jurisdiction-level numbers of COVID-19 cases, deaths, and changes in incidence is critical for understanding community risk and making decisions about community mitigation, including social distancing, and strategic health care resource allocation.

      Community Transmission of coronaVirus disease 2019 (COVID-19) was first detected in the United States in February 2020. By mid-March, all 50 states, the District of Columbia (DC), New York City (NYC), and four U.S. territories had reported cases of COVID-19. This report describes the geographic distribution of laboratory-confirmed COVID-19 cases and related deaths reported by each U.S. state, each territory and freely associated state,* DC, and NYC during February 12–April 7, 2020, and estimates cumulative incidence for each jurisdiction. In addition, it projects the jurisdiction-level trajectory of this pandemic by estimating case doubling times on April 7 and changes in cumulative incidence during the most recent 7-day period (March 31–April 7). As of April 7, 2020, a total of 395,926 cases of COVID-19, including 12,757 related deaths, were reported in the United States Cumulative COVID-19 incidence varied substantially by jurisdiction, ranging from 20.6 cases per 100,000 in Minnesota to 915.3 in NYC. On April 7, national case doubling time was approximately 6.5 days, although this ranged from 5.5 to 8.0 days in the 10 jurisdictions reporting the most cases. Absolute change in cumulative incidence during March 31–April 7 also varied widely, ranging from an increase of 8.3 cases per 100,000 in Minnesota to 418.0 in NYC. Geographic differences in numbers of COVID-19 cases and deaths, cumulative incidence, and changes in incidence likely reflect a combination of jurisdiction-specific epidemiologic and population-level factors, including 1) the timing of COVID-19 introductions; 2) population density; 3) age distribution and prevalence of underlying medical conditions among COVID-19 patients (1–3); 4) the timing and extent of community mitigation measures; 5) diagnostic tTesting capacity; and 6) public health reporting practices. Monitoring jurisdiction-level numbers of COVID-19 cases, deaths, and changes in incidence is critical for understanding community risk and making decisions about community mitigation, including social distancing, and strategic health care resource allocation.

      Suggested citation for this article: . Geographic Differences in COVID-19 Cases, Deaths, and Incidence — United States, February 12–April 7, 2020. MMWR Morb Mortal Wkly Rep. ePub: 10 April 2020. DOI: http://dx.doi.org/10.15585/mmwr.mm6915e4external icon.

      mm6915e4-H.pdf

    • Content Notes:
      TABLE. Reported COVID-19 cases and deaths and estimated cumulative incidence,* March 31 and April 7, 2020, and change in cumulative incidence from March 31 to April 7, 2020 — U.S. jurisdictions -- FIGURE 1. Cumulative number of reported COVID-19 cases, by jurisdiction — selected U.S. jurisdictions,*,† April 7, 2020 -- FIGURE 2. Cumulative incidence* of COVID-19, by report date — selected U.S. jurisdictions,†,§ March 10–April 7, 2020 -- FIGURE 3. Number of reported COVID-19–related deaths, by jurisdiction — selected U.S. jurisdictions,*,† April 7, 2020.
    • Subjects:
    • Series:
      MMWR. Morbidity and Mortality Weekly Report ; v. 69, early release, April 10, 2020
    • Document Type:
      Journal Article
    • Place as Subject:
      United States
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