This article documents the chronology and epidemiology of SARS-CoV-2, the virus that causes the coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic, in December 2021. The first human cases of COVID-19 were identified in Wuhan, China, in December 2019.
Case statistics
Pandemic chronology
1 December
Canada has reported 3,128 new cases, bringing the total to 1,795,626. Malaysia has reported 5,439 cases, bringing the total number to 2,638,221. There are 6,803 recoveries, bringing the total number of recoveries to 2,544,007. There are 49 deaths, bringing the death toll to 30,474. New Zealand has reported 149 new cases, bringing the total number to 11723. There are 17 recoveries, bringing the total number of recoveries to 5671. The death toll remains 44. There are 6,008 active cases (47 at the border and 5,961 in the community). Singapore has reported 1,324 new cases including 1,266 in community, 45 residing in dormitories and 13 imported, bringing the total to 266,049. Eight deaths have been confirmed, bringing the death toll to 726. Ukraine has reported 11,960 new daily cases and 557 new daily deaths, bringing the total number to 3,450,341 and 86,532, respectively; a total of 2,972,192 patients have recovered.
2 December
Canada has reported 2,484 new cases, bringing the total to 1,798,105. Malaysia has reported 5,806 cases, bringing the total number to 2,644,027. There are 7,246 recoveries, bringing the total number of recoveries to 2,551,253. There are 47 deaths, bringing the death toll to 30,521. New Zealand has reported 174 new cases, bringing the total number to 11,895. There are 33 recoveries, bringing the total number of recoveries to 5,704. The death toll remains 44. There are 6,147 active cases (47 at the border and 6,100 in the community). Singapore has reported its first two cases of the Omicron variant. The cases are both imported from Johannesburg. At the same time, the country has reported 1,101 new cases including 1,050 in community, 41 residing in dormitories and ten imported, bringing the total to 267,150. Nine deaths have been confirmed, bringing the death toll to 735. Ukraine has reported 13,531 new daily cases and 525 new daily deaths, bringing the total number to 3,463,872 and 87,057, respectively; a total of 2,995,727 patients have recovered.
3 December
Canada has reported 2,733 new cases, bringing the total to 1,801,601. Malaysia has reported 5,551 new cases, bringing the total number to 2,649,578. There are 5,301 recoveries, bringing the total number of recoveries to 2,556,554. There are 17 deaths, bringing the death toll to 30,538. That same day, Malaysia reported its first case of the Omicron variant. New Zealand has reported 98 new cases, bringing the total number to 11,992. There are 44 recoveries, bringing the total number of recoveries to 5,759. The death toll remains 44. There are 6,189 active cases (51 at the border and 6,138 in the community). Singapore has reported 766 new cases including 738 in community, 11 residing in dormitories and 17 imported, bringing the total to 267,916. Nine deaths have been confirmed, bringing the death toll to 744. Ukraine has reported 13,777 new daily cases and 509 new daily deaths, bringing the total number to 3,477,649 and 87,566, respectively; a total of 3,018,620 patients have recovered.
4 December
Canada has reported 2,710 new cases, bringing the total to 1,805,070. The Cook Islands reported its first positive case in managed isolation. The patient is a ten-year boy who had returned with his family on a repatriation flight. Malaysia has reported 4,896 new cases, bringing the total number to 2,654,474. There are 4,678 recoveries, bringing the total number of recoveries to 2,561,232. There are 36 deaths, bringing the death toll to 30,574. New Zealand has reported 100 new cases, bringing the total number to 12,087. There are 14 recoveries, bringing the total number of recoveries to 5,773. The death toll remains 44. There are 6,270 active cases (52 at the border and 6,218 in the community). Singapore has reported 743 new cases including 707 in community, 24 residing in dormitories and 12 imported, bringing the total to 268,659. Two deaths have been confirmed, bringing the death toll to 746. South Africa surpasses 3 million cases. Ukraine has reported 13,206 new daily cases and 436 new daily deaths, bringing the total number to 3,490,855 and 88,002 respectively; a total of 3,041,385 patients have recovered. The United States of America surpasses 49 million cases.