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The original item was published from 4/23/2021 2:53:00 PM to 4/23/2021 4:17:06 PM.

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City Spotlights & COVID-19 Updates

Posted on: April 23, 2021

[ARCHIVED] COVID-19 Update | April 23, 2021

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COVID-19: Brookings County

UPDATED: April 23, 2021

The South Dakota Department of Health COVID-19 page is updated daily and has confirmed:

  • Total Cases: 4,140
  • Recovered Individuals: 3,956
  • Active Cases: 147
  • Spread Category: Substantial

COVID-19: Brookings Thresholds

UPDATED: April 16, 2021

  1. Is the epidemic controlled? No.  Rt was above 1.0 for 11 of the last 14 days; community spread is currently substantial per DOH definition.
  2. Is the health system able to cope with a resurgence of COVID-19 cases that may arise after adapting some measures? Based on current census, Brookings Health System feels they can handle the lowest of the anticipated numbers (n = 4).  However, staffing will be challenged, thereby limiting the ability to sustain care for the long-term, with the highest anticipated number (n = 14).
  3. Is the public health surveillance system able to detect and manage the cases and their contacts, and identify a resurgence of cases in Brookings?
    a. Mitigation Level: No, according to BHS data (includes sentinel testing, multiple tests on same person, non-county residents) and state data using tests done and unique people tested.
    b. Suppression Level: No, test positivity is 17% based on BHS data and for state data there is a range of 8% based on tests done to 40% based on unique individuals tested.
    c. Approximate Time to Receive Test Results: 1 to 2 days
    d. Percent of Brookings population aged 16 years or older that has received at least one vaccine as of 4/14/21: 40%


COVID-19: Brookings Epidemiology Weekly Video

UPDATED: April 23, 2021

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COVID-19: Local, Regional, and National Weekly Summary

UPDATED: April 21, 2021

Brookings County (substantial spread is 34+ new cases per week)

  • 4,126 cases:  78 new cases this week vs. 141 in previous week 
  • 169 active cases (down from 190 last week)
  • Test positivity among people tested (27%) & among tests done (6%); percent test positivity based on PCR tests only (DOH dashboard = 7%).
  • The largest percentage increase this past week was in the 0-9 year age group (6%, n=8) and the largest increase in number of cases this past week was in the 20-29 year age group (2% increase, n=20).
  • 148 ever hospitalized:  2 new admissions this week vs. 3 in previous week
  • 37 total deaths: 0 deaths this week vs. 0 in previous week
  • 45% of Brookings residents aged 16+ years have received 1+ vaccines and 28% are fully vaccinated (not including VA & IHS).
  • Cumulative cases per 100,000 population by week is given for counties with the 10 most populous cities (three slides; see county rankings below).  
  • Brookings County has the second lowest overall number of cases per population (Lawrence County is best).  
  • Brookings County had the second largest number of cases in the past seven days per population out of the counties with the top 10 most populous cities (Codington County as highest).
  • Brookings County mobility data were not updated this week.

South Dakota (substantial spread is 864+ new cases per week)

  • 121,517 cases: 1,138 new cases this week vs. 1,404 in previous week
  • 2,043 active cases (2,391 last week)
  • 18% of cases this past week were among individuals aged 60+ years – this is about the same as 12% last week.  
  • Test positivity among people tested (23%) & among tests done (5%); percent test positivity based on PCR tests only (DOH dashboard = 7%).
  • 7,261 ever hospitalized: 93 admissions this week vs. 81 in previous week
  • 115 people currently hospitalized vs. 113 hospitalized last week (26 in the ICU vs. 27 last week)
  • 1,954 deaths:  6 deaths this week vs. 10 in previous week 
  • 49% of South Dakotans and Brookings county residents aged 20+ years have received 1+ vaccines.  Brookings County has a higher vaccination rate in all age groups except 20-29 years. All age groups less than 60 years have less than a 60% vaccination rate. 
  • 13.7% of South Dakotans have tested positive (11.8% of Brookings County residents): the age group with the highest percentage is 20-29 years (18.4% for SD & 15.7% for Brookings) followed by 40-49 year (18.2% for SD & 15.1% for Brookings).
  • Overall, 6.0% of South Dakotans who have tested positive have been hospitalized ranging from 1.1% in the less than 20 year age group to 28.6% in 80 years and older age group.
  • Overall case fatality rate (percent of people testing positive for COVID who die) is 1.64% and ranges from less than 1% in individuals less than 60 years of age to 1.9% in the 60-69 year age group, and increasing to 20.5% in the 80 years and older age group.
  • Cumulative number of cases for K-12 and higher education: 11,289 & 3,866 cases in K-12 students & staff and 3,426 & 662 cases in higher ed students & staff.
  • Deaths over time, including through February 2021, and by causes of death (four slides) were updated (last updated 4/11/21):
    • 2020 Total deaths (provisional) = 9,857
    • Average number of deaths/year (2010-2019) = 7,602
    • Difference between observed & average = 2,255
    • COVID deaths in 2020 per DOH dashboard = 1,488
  • South Dakota mobility data were not updated this week.


  • 32.53 million cases: 465,686 new cases this week vs. 510,346 in previous week
  • 582,456 total deaths: 5,277 deaths this week vs. 6,919 in previous week   


  • 143.5 million cases: 5.52 million cases this week vs. 4.99 million in previous week
  • 3.05 million deaths: 85,671 deaths this week vs. 85,690 in previous week

COVID-19: Rankings (Top 10 Most Populous South Dakota Counties)

UPDATED: April 21, 2021


COVID-19: Weekly Data

UPDATED: April 21, 2021

Source: Bonny Specker, Ph. D., South Dakota State University, Division of Research and Economic Development


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