October 2021 Summary Statistics

I will present some summary statistics which can explain the trends that we observed during the month of October 2021. This complements similar reports from previous months.

Total Case Growth
Total cases on 30 September: 486,904
Total cases on 31 October: 507,807
Total case increase: 20,903

Smallest daily case increase: 344 (25 October)
Largest daily case increase: 1,183 (8 October)

Average daily increase: 686








Total Fatality Growth
Total fatalities on 30 September: 7,622
Total fatalities on 31 October: 7,830
Total fatality increase: 208

Smallest daily fatality increase: 0 (11 October)
Largest daily fatality increase: 16 (14 October)

Average daily increase: 6.71


State-Level Shares for October 2021

Median share of regional cases for Maryland: 44%
Median share of regional fatalities for Maryland: 52%
Maryland share of DC metropolitan-area population: 42%

Median share of regional cases for DC: 12%
Median share of regional fatalities for DC: 15%
DC share of DC metropolitan-area population: 13%

Median share of regional cases for Virginia: 44%
Median share of regional fatalities for Virginia: 33%
Virginia share of DC metropolitan-area population: 45%





Population-adjusted statistics, per 1,000 of population (data as of 31 October)
MD cases: 93.002
MD fatalities: 1.712

DC cases: 91.778
DC fatalities: 1.695

VA cases: 88.058
VA fatalities: 1.015






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