* Estimates include those not tested.
Current projection: Mandates are re-imposed for six weeks whenever daily deaths reach eight per million.
Mandates easing: Continued easing of social distancing mandates, and mandates are not re-imposed.
Universal masks: 95% mask usage in every location, with mandates re-imposed for six weeks if daily deaths reach eight per million.
ÌÇÐÄÆÆ½â°æ's COVID-19 content is compiled from various sources. Although all of these sources are reliable, this may result in discrepancies in figures among different statistics, graphs, and charts.
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COVID-19 projected new cases per day worldwide from Dec. 1-Mar. 31, 2021 by scenario
Based on projections made on December 17, the number of new cases of COVID-19 per day, including those not tested, could range from 901 thousand to 3.4 million worldwide by March 31, 2021, depending on the scenario. The best case scenario being 95 percent mask usage universally and the worst case being continued easing of social distancing mandates. This statistic shows the projected number of new COVID-19 cases per day worldwide from December 1, 2020 to March 31, 2021 based on three different scenarios, as of December 17.
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IHME. (December 17, 2020). Projected number of new COVID-19 cases worldwide per day from Dec. 1, 2020 to Mar. 31, 2021, by scenario* [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 22, 2026, from /statistics/1176626/covid-projected-cases-per-day-by-scenario/
IHME. "Projected number of new COVID-19 cases worldwide per day from Dec. 1, 2020 to Mar. 31, 2021, by scenario*." Chart. December 17, 2020. ÌÇÐÄÆÆ½â°æ. Accessed July 22, 2026. /statistics/1176626/covid-projected-cases-per-day-by-scenario/
IHME. (2020). Projected number of new COVID-19 cases worldwide per day from Dec. 1, 2020 to Mar. 31, 2021, by scenario*. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 22, 2026. /statistics/1176626/covid-projected-cases-per-day-by-scenario/
IHME. "Projected Number of New Covid-19 Cases Worldwide per Day from Dec. 1, 2020 to Mar. 31, 2021, by Scenario*." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 17 Dec 2020, /statistics/1176626/covid-projected-cases-per-day-by-scenario/
IHME, Projected number of new COVID-19 cases worldwide per day from Dec. 1, 2020 to Mar. 31, 2021, by scenario* ÌÇÐÄÆÆ½â°æ, /statistics/1176626/covid-projected-cases-per-day-by-scenario/ (last visited July 22, 2026)
Projected number of new COVID-19 cases worldwide per day from Dec. 1, 2020 to Mar. 31, 2021, by scenario* [Graph], IHME, December 17, 2020. [Online]. Available: /statistics/1176626/covid-projected-cases-per-day-by-scenario/