COVID-19 Forecasts: Cases

Reported and forecasted new and total COVID-19 deaths as of July 26, 2021.

Interpretation of Forecasts of New Cases

• This week, ensemble forecasts of new reported COVID-19 cases over the next 4 weeks included forecasts from 27 modeling groups, each of which contributed a forecast for at least one jurisdiction.
• This week’s national ensemble predicts that the number of newly reported COVID-19 cases will likey increase over the next 4 weeks, with 200,000 to 1,200,000 new cases likely reported in the week ending August 21, 2021.
• The state- and territory-level ensemble forecasts predict that over the next 4 weeks, the number of new reported cases per week will likely increase in 5 jurisdictions, which is indicated in the forecast plots below. Trends in numbers of future reported cases are uncertain or predicted to remain stable in the other states and territories.

National Forecasts

• The figure shows the number of new COVID-19 cases reported in the United States each week from May 22 through July 24 and forecasted new cases over the next 4 weeks, through August 21.
• Models make various assumptions about the levels of social distancing and other interventions, which may not reflect recent changes in behavior. See model descriptions below for details on the assumptions and methods used to produce the forecasts.

Download national forecast data excel icon[XLS – 24 KB]

State & County Forecasts

State-level and county-level forecasts show the predicted number of new COVID-19 cases for the next 4 weeks by jurisdiction. Each forecast figure uses a different scale due to differences in the number of COVID-19 cases between jurisdictions. To aid in comparisons between jurisdictions, the ensemble plot for each location has a second axis (in grey) that shows the expected number of cases per 100,000 people. Only forecasts meeting a set of ensemble inclusion criteria are shown; further details are available here: https://covid19forecasthub.org/doc/ensemble/external icon. Plots of the state-level and county-level ensemble forecasts and the underlying data can be downloaded below.

Download forecasts for states and territories and for counties pdf icon[PDF – 10 MB]

Download all forecast data excel icon[XLS – 13 MB]

Additional forecast data and information on forecast submission are available at the COVID-19 Forecast Hubexternal icon.

Forecast Inclusion and Assumptions

The teams with forecasts included in the ensembles are displayed below. Forecasts are included when they meet a set of submission and data quality requirements, further described here: https://github.com/reichlab/covid19-forecast-hub#ensemble-modelexternal icon.

The forecasts make different assumptions about social distancing measures. Additional individual model details are available here: https://github.com/cdcepi/COVID-19-Forecasts/blob/master/COVID-19_Forecast_Model_Descriptions.mdexternal icon

Intervention assumptions fall into multiple categories:

• These modeling groups make assumptions about how levels of social distancing will change in the future:

1. • Columbia Universityexternal icon (Model: Columbia)
   • Massachusetts Institute of Technology, Operations Research Centerexternal icon (Model: MIT-ORC)
   • University of California, Los Angelesexternal icon (Model: UCLA)

• These modeling groups assume that existing social distancing measures in each jurisdiction will continue through the projected 4-week time period:

1. • Bob Paganoexternal icon (Model: BPagano)
   • Columbia University and University of North Carolinaexternal icon (Model: Columbia-UNC)
   • Federal Reserve Bank of San Francisco/Wilsonexternal icon (Model: FRBSF-Wilson)
   • Facebook AI Research (Model: Facebook)
   • IEMexternal icon (Model: IEM)
   • Johns Hopkins University, Applied Physics Labexternal icon (Model: JHU-APL)
   • Johns Hopkins University, Center for Systems Science and Engineeringexternal icon (Model: JHU-CSSE)
   • Johns Hopkins University, Infectious Disease Dynamics Labexternal icon (Model: JHU-IDD)
   • Johns Hopkins University, University of North Carolina, and Googleexternal icon (Model: JHU-UNC-Google)
   • Karlen Working Groupexternal icon (Model: Karlen)
   • Los Alamos National Laboratoryexternal icon (Model: LANL)
   • Masaryk Universityexternal icon (Model: Masaryk)
   • MIT-Cassandraexternal icon (Model: MIT-Cassandra)
   • Massachusetts Institute of Technology, Institute for Data, Systems, and Societyexternal icon (Model: MIT-ISOLAT)
   • Microsoft AIexternal icon (Model: Microsoft)
   • Northeastern University, Laboratory for the Modeling of Biological and Socio-technical Systemsexternal icon (Model: MOBS)
   • Pandemic Centralexternal icon (Model: PandemicCentral)
   • Qi-Jun Hongexternal icon (Model: QJHong)
   • Robert Walravenexternal iconexternal icon (Model: ESG)
   • University of Central Floridaexternal icon (Model: UCF)
   • University of Georgia, Center for the Ecology of Infectious Diseaseexternal iconexternal icon (Model: UGA-CEID)
   • University of Michiganexternal iconexternal icon (Model: UM)
   • University of Southern Californiaexternal iconexternal icon (Model: USC)

• This modeling group makes both assumptions, combining different models:
  • The University of Virginiaexternal icon (Model: UVA)

¹The full range of the prediction intervals is not visible for all state plots. Please see the forecast data for the full range of state-specific prediction intervals.