Visier COVID-19 historical change log

Visier is committed to helping organizations react, respond, and recover from the COVID-19 pandemic. For more information on data sources and consolidation process, see Visier COVID-19 data sources.

For most recent changes see COVID-19 data.

Changes here are in chronological order.

Change log

Changes shown on the following lines are from 2020 and are in reverse chronological order.

Date	Changes
2020-03-21	Initial release of COVID-19 dataset based on data from Johns Hopkins University. Supported measures are Cases, Deaths and Recoveries. Supported locations are countries, US states, and Chinese and Canadian provinces.
2020-04-01	Removal of Johns Hopkins University data. Addition of a dataset consolidated by Visier from primary and secondary sources: • European Centre for Disease Prevention and Control • Ding Xiang Yuan (DXY) • BNO News • USA Facts Supported locations are countries, US states, and Chinese provinces. Removal of Canadian provinces.
2020-04-02	Addition of sources: • COVID-19 Canada Open Data Working Group • Spanish Ministry of Health New supported locations are Canadian and Spanish provinces.
2020-04-03	Existing dataset updated. No change in sources, measures, or coverage.
2020-04-04	Existing dataset updated.
2020-04-06	Existing dataset updated.
2020-04-07	Addition of sources: • Civil Protection Department • USA Facts – County level New supported locations are regions of Italy and counties in US states. Existing data updated.
2020-04-09	Existing dataset updated.
2020-04-10	Addition of source Public Health England. New supported locations are public health regions in England. Existing dataset updated.
2020-04-11	Existing dataset updated.
2020-04-12	Existing dataset updated.
2020-04-13	Existing dataset updated.
2020-04-14	Existing dataset updated.
2020-04-15	Existing dataset updated.
2020-04-16	Existing dataset updated.
2020-04-17	Addition of source Robert Koch Institut. New supported locations are states of Germany. Existing dataset updated.
2020-04-18	Existing dataset updated.
2020-04-19	Existing dataset updated.
2020-04-20	Existing dataset updated.
2020-04-21	Existing dataset updated.
2020-04-22	Existing dataset updated.
2020-04-23	Updated source Public Health England now providing data for the UK. Existing dataset updated.
2020-04-24	Existing dataset updated.
2020-04-25	Addition of sources: • Ministry of Health and Family Welfare • COVID-19 India Working Group New supported locations are states of India. Existing dataset updated.
2020-04-26	Existing dataset updated.
2020-04-28	Existing dataset updated.
2020-04-29	Existing dataset updated.
2020-04-30	Addition of unconsolidated source Institute for Health Metrics Evaluation – University of Washington. New supported measures include projected deaths and demand for hospital resources in Canada, European Economic Area, Germany, Italy, Spain, and the United States. Existing dataset updated.
2020-05-01	Existing dataset updated.
2020-05-02	Addition of sources: • Reustle K.K. • Data Science for Social Impact Research New supported locations are prefectures of Japan and provinces of South Africa. Existing dataset updated.
2020-05-03	Existing dataset updated.
2020-05-04	Existing dataset updated.
2020-05-05	Existing dataset updated.
2020-05-06	Existing dataset updated. Improved geomapping.
2020-05-07	Existing dataset updated.
2020-05-08	Existing dataset updated.
2020-05-09	Existing dataset updated.
2020-05-10	Existing dataset updated.
2020-05-11	Existing dataset updated.
2020-05-12	Existing dataset updated.
2020-05-13	Existing dataset updated. Published with errors in recoveries counts for US as provided by DXY.
2020-05-14	Existing dataset updated. Issues with recoveries counts for US fixed.
2020-05-15	Existing dataset updated.
2020-05-16	Existing dataset updated. Data delay noted for USAFacts and Spain.
2020-05-17	Existing dataset updated. Delay corrected.
2020-05-18	Existing dataset updated. Data delay noted for Spain.
2020-05-19	Existing dataset updated. Data delays: South Africa and Spain.
2020-05-20	Existing dataset updated. Data delay for Spain; South Africa corrected.
2020-05-21	Existing dataset updated. Data delay for Spain.
2020-05-22	Existing dataset updated.
2020-05-23	Existing dataset updated.
2020-05-24	Existing dataset updated.
2020-05-25	Existing dataset updated.
2020-05-26	Existing dataset updated.
2020-05-27	Existing dataset updated.
2020-05-28	Existing dataset updated.
2020-05-29	Existing dataset updated.
2020-05-30	Existing dataset updated. Delay in sub-national data for India.
2020-05-31	Existing dataset updated.
2020-06-01	Existing dataset updated.
2020-06-02	Existing dataset updated. Delay for India fixed.
2020-06-03	Existing dataset updated.
2020-06-04	Existing dataset updated.
2020-06-05	Existing dataset updated.
2020-06-08	Existing dataset updated.
2020-06-09	Existing dataset updated. Sub-national data for Spain extended at last reported values.
2020-06-10	Existing dataset updated.
2020-06-11	Existing dataset updated.
2020-06-12	Existing dataset updated.
2020-06-15	Existing dataset updated.
2020-06-16	Existing dataset updated. Published with errors in recoveries counts for US as provided by DXY.
2020-06-17	Existing dataset updated. Errors in recovery counts corrected.
2020-06-18	Existing dataset updated.
2020-06-19	Existing dataset updated.
2020-06-22	Existing dataset updated.
2020-06-23	Existing dataset updated.
2020-06-24	Existing dataset updated.
2020-06-25	Existing dataset updated. Recovery counts not updated.
2020-06-26	Existing dataset updated. Errors in recovery counts corrected.
2020-06-29	Existing dataset updated.
2020-06-30	Existing dataset updated.
2020-07-01	Existing dataset updated.
2020-07-02	Existing dataset updated.
2020-07-03	Existing dataset updated.
2020-07-06	Existing dataset updated. Case counts for UK corrected.
2020-07-07	Existing dataset updated.
2020-07-08	Existing dataset updated.
2020-07-09	Existing dataset updated.
2020-07-10	Existing dataset updated.
2020-07-13	Existing dataset updated.
2020-07-14	Existing dataset updated.
2020-07-15	Existing dataset updated.
2020-07-16	Existing dataset updated.
2020-07-17	Existing dataset updated.
2020-07-21	Existing dataset updated.
2020-07-22	Existing dataset updated.
2020-07-23	Existing dataset updated.
2020-07-24	Existing dataset updated.
2020-07-27	Existing dataset updated. One source provided an implausibly high recovery count for Canada.
2020-07-28	Existing dataset updated. Recovery counts for Canada corrected without restatement.
2020-07-29	Existing dataset updated. Variation in recovery counts continue due disruption in sources publishing.
2020-07-30	Existing dataset updated. Variation in recovery counts has ended.
2020-07-31	Existing dataset updated.
2020-08-03	Existing dataset updated.
2020-08-04	Existing dataset updated.
2020-08-05	Existing dataset updated.
2020-08-06	Existing dataset updated.
2020-08-07	Existing dataset updated.
2020-08-10	Existing dataset updated.
2020-08-11	Existing dataset updated.
2020-08-12	Existing dataset updated.
2020-08-13	Existing dataset updated.
2020-08-14	Existing dataset updated.
2020-08-17	Existing dataset updated.
2020-08-21	Existing dataset updated. National coverage with sub-national spatial coverage for Canada, South Africa, and the United States.
2020-08-24	Existing dataset updated. National coverage with sub-national spatial coverage for Canada, South Africa, and the United States.
2020-08-25	Existing dataset updated. National coverage with sub-national spatial coverage for Canada, South Africa, and the United States.
2020-08-26	Existing dataset updated. National coverage with sub-national spatial coverage for Canada, South Africa, and the United States.
2020-08-27	Existing dataset updated. National coverage with sub-national spatial coverage for Canada, South Africa, and the United States.
2020-08-28	Existing dataset updated. National coverage with sub-national spatial coverage for Canada, South Africa, and the United States.
2020-08-31	Existing dataset updated. Resumed sub-national spatial coverage for multiple countries.
2020-09-01	Existing dataset updated.
2020-09-02	Existing dataset updated.
2020-09-03	Existing dataset updated.
2020-09-04	Existing dataset updated.
2020-09-08	Existing dataset updated.
2020-09-09	Existing dataset updated.
2020-09-10	Existing dataset updated.
2020-09-11	Existing dataset updated.
2020-09-14	Existing dataset updated.
2020-09-15	Existing dataset updated.
2020-09-16	Existing dataset updated.
2020-09-17	Existing dataset updated.
2020-09-18	Existing dataset updated.
2020-09-21	Existing dataset updated. Recovery counts for Japan are negative.
2020-09-22	Existing dataset updated. Recovery counts for Japan now corrected.
2020-09-23	Existing dataset updated.
2020-09-24	Existing dataset updated.
2020-09-25	Existing dataset updated.
2020-09-28	Existing dataset updated.
2020-09-29	Existing dataset updated.
2020-09-30	Existing dataset updated.
2020-10-01	Existing dataset updated.
2020-10-02	Existing dataset updated.
2020-10-05	Existing dataset updated.
2020-10-06	Existing dataset updated.
2020-10-07	Existing dataset updated.
2020-10-08	Existing dataset updated.
2020-10-09	Existing dataset updated.
2020-10-13	Existing dataset updated. Recent Canadian data missing.
2020-10-14	Existing dataset updated. Canadian data restored. Japanese recoveries are negative.
2020-10-15	Existing dataset updated. Japanese recovery restored.
2020-10-16	Existing dataset updated.
2020-10-19	Existing dataset updated. Issues with UK data detected.
2020-10-20	Existing dataset updated. Issues with UK data corrected.
2020-10-21	Existing dataset updated.
2020-10-22	Existing dataset updated. No data for states of Germany.
2020-10-23	Existing dataset updated. Restored data for the states of Germany.
2020-10-26	Existing dataset updated.
2020-10-27	Existing dataset updated.
2020-10-28	Existing dataset updated.
2020-10-29	Existing dataset updated.
2020-10-30	Existing dataset updated. Recovery counts for Japan are negative.
2020-11-02	Existing dataset updated. Recovery counts for Japan corrected but South Africa are negative.
2020-11-03	Existing dataset updated. Recovery counts for South Africa corrected.
2020-11-04	Existing dataset updated.
2020-11-05	Existing dataset updated.
2020-11-06	Existing dataset updated. Drop in counts for the United Kingdom consistent with restatement of numbers.
2020-11-09	Existing dataset updated.
2020-11-10	Existing dataset updated.
2020-11-12	Existing dataset updated.
2020-11-13	Existing dataset updated.
2020-11-16	Existing dataset updated. Recovery counts for Japan are negative.
2020-11-17	Existing dataset updated. Recovery counts for Japan are negative.
2020-11-18	Existing dataset updated. Recovery counts for Japan corrected.
2020-11-19	Existing dataset updated. Note a small variation in cases for the United Kingdom.
2020-11-19	Existing dataset updated.
2020-11-20	Existing dataset updated.
2020-11-21	Existing dataset updated. Case counts for the United Kingdom are negative.
2020-11-22	Existing dataset updated.
2020-11-23	Existing dataset updated.
2020-11-24	Existing dataset updated. New recovery counts are negative for the United Kingdom and the United States.
2020-11-25	Existing dataset updated. New recovery counts corrected for the United Kingdom and the United States.
2020-11-26	Existing dataset updated. Recovery counts missing for South Africa.
2020-11-27	Existing dataset updated. Recovery counts missing for South Africa.
2020-11-30	Existing dataset updated. Recovery counts are globally negative for November 28, and values missing for South Africa on November 25 and 26.
2020-12-01	Existing dataset updated.
2020-12-02	Existing dataset updated. New case counts for the United Kingdom are negative.
2020-12-03	Existing dataset updated. Corrected negative case counts for the United Kingdom.
2020-12-04	Existing dataset updated.
2020-12-07	Existing dataset updated.
2020-12-08	Existing dataset updated.
2020-12-09	Existing dataset updated.
2020-12-10	Existing dataset updated.
2020-12-11	Existing dataset updated. Not updates for regions of Japan.
2020-12-14	Existing dataset updated. Japanese data restored. New state level cases for India missing.
2020-12-15	Existing dataset updated. Indian state-level cases restored.
2020-12-16	Existing dataset updated.
2020-12-17	Existing dataset updated.
2020-12-18	Existing dataset updated.
2020-12-21	Existing dataset updated.
2020-12-22	Existing dataset updated. Global recoveries negative.
2020-12-29	Existing dataset updated. Global recoveries corrected. US data to December 27 only.
2020-12-30	Existing dataset updated. Multiple data sources did not update.
2021-01-06	Existing dataset updated. ECDC data published weekly.
2021-01-08	Existing dataset updated.
2021-01-11	Existing dataset updated. No changes in cases at US state or county level since January 8.
2021-01-12	Existing dataset updated. No changes in cases or deaths at US state or county level since January 11.
2021-01-13	Existing dataset updated. No changes in cases or deaths at US state or county level since January 11.
2021-01-14	Existing dataset updated.
2021-01-15	Existing dataset updated.
2021-01-18	Existing dataset updated. US county level data delayed by one day.
2021-01-19	Existing dataset updated. US county level data delayed by one day.
2021-01-20	Existing dataset updated. US county level data delayed by one day.
2021-01-21	Existing dataset updated. US county level data delayed by one day.
2021-01-22	Existing dataset updated. US county level data now uptodate.
2021-01-25	Existing dataset updated. US county level data delayed by one day.
2021-01-26	Existing dataset updated. US county level data delayed by one day.
2021-01-27	Existing dataset updated. US county level data delayed by one day.
2021-01-28	Existing dataset updated. US county level data delayed by one day.
2021-01-29	Existing dataset updated. US county level data delayed by one day.
2021-02-02	Existing dataset updated. US county level data delayed by one day. Global new recoveries are negative.
2021-02-03	Existing dataset updated. US county level data delayed by one day. Global new recoveries were corrected.
2021-02-04	Vaccination data added. Existing case dataset updated. US county level data delayed by two days.
2021-02-05	Existing datasets updated. US county level case data delayed by one day.
2021-02-08	Existing datasets updated. US county level case data delayed by one day.
2021-02-09	Existing datasets updated. US county level case data delayed by one day.
2021-02-10	Existing datasets updated. US county level case data delayed by one day.
2021-02-11	Existing datasets updated. US county level case data delayed by one day.
2021-02-12	Existing datasets updated. US county level case data was delayed by one day which is the standard now only greater delays will be commented on.
2021-02-16	Existing datasets updated.
2021-02-17	Existing datasets updated.
2021-02-18	Existing datasets updated. No global values for cases, deaths, and recoveries.
2021-02-19	Existing datasets updated. Restored global values for cases, deaths, and recoveries.
2021-02-22	Existing datasets updated.
2021-02-23	Existing datasets updated. US CDC vaccination data unavailable.
2021-02-24	Existing datasets updated.
2021-02-25	Existing datasets updated.
2021-02-26	Existing datasets updated.
2021-03-01	Existing datasets updated.
2021-03-02	Existing datasets updated. US CDC vaccination available again.
2021-03-03	Existing datasets updated.
2021-03-04	Existing datasets updated.
2021-03-05	Existing datasets updated.
2021-03-08	Existing datasets updated. Data version released one day late.
2021-03-09	Existing datasets updated.
2021-03-10	Existing datasets updated.
2021-03-11	Existing datasets updated.
2021-03-12	Existing datasets updated.
2021-03-15	Existing datasets updated.
2021-03-16	Existing datasets updated.
2021-03-17	Existing datasets updated. Data from Germany not included. US county data delayed by two days.
2021-03-18	Existing datasets updated. Data from Germany now included.
2021-03-19	Existing datasets updated.
2021-03-22	Existing datasets updated.
2021-03-23	Existing datasets updated. No Canadian data for the day before.
2021-03-25	Skipped March 24th. Existing datasets updated. Canadian data restored.
2021-03-26	Existing datasets updated.

For more recent changes see Visier COVID-19.

Disclaimer

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