Covid-19
92,340 daily country-level Covid-19 records with cases, deaths, vaccinations, testing, stringency index, and population indicators. Supports pandemic-curve comparisons, vaccination-rollout dashboards, and policy-impact analysis.
Source: Our World in Data · ourworldindata.org · CC-BY 4.0
Challenge brief
slug: 2021-06-covid-19 title: Covid-19 year: 2021 month: 06 source: authored authored_at: 2026-04-19 needs_leon_review: true
Covid-19 - Challenge Brief
Challenge period: June 2021 Dataset: Reconstructed brief based on the shipped data file for the June 2021 DataDNA challenge.
About the data
The primary data table for this challenge carries the following columns:
iso_codecontinentlocationdatetotal_casesnew_casesnew_cases_smoothedtotal_deathsnew_deathsnew_deaths_smoothedtotal_cases_per_millionnew_cases_per_millionnew_cases_smoothed_per_milliontotal_deaths_per_millionnew_deaths_per_millionnew_deaths_smoothed_per_millionreproduction_rateicu_patientsicu_patients_per_millionhosp_patientshosp_patients_per_millionweekly_icu_admissionsweekly_icu_admissions_per_millionweekly_hosp_admissionsweekly_hosp_admissions_per_million- ...and 34 more columns
Suggested analytical angles
- How did case and death rates diverge across continents over 2020 and 2021?
- Which countries achieved the fastest vaccination ramp-up?
- How does stringency index correlate with case trajectory?
- Where did testing capacity most lag behind case growth?
What great submissions did
This brief was reconstructed from the dataset contents in 2026 as part of the Playground audit. The original June 2021 challenge brief was not preserved as a separate file in the source archive, so the analytical angles above are inferred from the column list. See the corresponding /challenges/ entry on datadna.onyxdata.co.uk for examples of how participants approached the data.
Editorial note
_This stub was authored by Claude on 2026-04-19 for Leon's review. Refine the suggested angles and confirm factual accuracy before setting brief_status = leon_reviewed in the audit log._
This dataset was the subject of the DataDNA June 2021 community challenge. The original scoring and leaderboard pre-date the current submission system and are not available for display.