Estimates for District of Columbia (United States)

United States

Estimates presented here are no longer updated as of 31 March 2022. For more information on the rationale behind this move and some reflections on 2 years of global nowcasting and forecasting, please read our related blog post.

Using data available up to the: 2022-04-27

Note that it takes time for infection to cause symptoms, to get tested for SARS-CoV-2 infection, for a positive test to return and ultimately to enter the case data presented here. In other words, today’s case data are only informative of new infections about two weeks ago. This is reflected in the plots below, which are by date of infection.

Estimates are available to download here.

See our see Methods or our paper for an explanation of how these estimates are derived.

Summary (estimates as of the 2022-03-29)

Table 1: Latest estimates (as of the 2022-03-29) of the number of confirmed cases by date of infection, the expected change in daily confirmed cases, the effective reproduction number, the growth rate, and the doubling time (when negative this corresponds to the halving time). The median and 90% credible interval is shown for each numeric estimate.
New confirmed cases by infection date 2572 (239 – 39874)
Expected change in daily cases Likely increasing
Effective reproduction no. 1.5 (0.83 – 2.8)
Rate of growth 0.14 (-0.049 – 0.42)
Doubling/halving time (days) 5 (1.7 – -14)

Confirmed cases, their estimated date of report, date of infection, and time-varying reproduction number estimates