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 September 2021. The first human cases of COVID-19 were identified in Wuhan, China, in December 2019.

Case statistics

Pandemic chronology 1 September Fiji has confirmed 290 new cases, bringing the total number to 47,006. Eight new deaths were reported, bringing the death toll to 504. There are 17,124 active cases. Iran surpassed 5 million cases. Malaysia has reported 18,762 new cases, bringing the total number to 1,765,016. There are 21,073 recoveries, bringing the total number of recoveries to 1,482,800. There are 278 deaths, bringing the death toll to 16,942. There are 265,274 active cases, with 1,007 in intensive care and 464 on ventilator support. New Zealand has reported 77 new cases while one previously reported case was reclassified, bringing the total number to 3,645 (3,288 confirmed and 357 probable). There are three recoveries, bringing the total number of recoveries to 2,895. The death toll remains 26. There are 724 active cases (682 in the community and 42 in managed isolation). The Philippines surpassed 2 million cases. Singapore has reported 180 new cases including 177 locally transmitted and three imported, bringing the total to 67,800. Of the locally transmitted cases, 90 of them are unlinked. The country has vaccinated a total of 4,515,469 people, with 4,328,804 being fully vaccinated as of yesterday. The death toll remains at 55. Ukraine has reported 2,075 new daily cases and 44 new daily deaths, bringing the total number to 2,288,371 and 53,833, respectively; a total of 2,208,865 patients have recovered.

2 September Fiji has confirmed 250 new cases of COVID-19, bringing the total number to 47,256. One new death was reported, bringing the death toll to 505. There are 16,267 active cases. Malaysia has reported 20,988 new cases, bringing the total number to 1,786,004. There are 23,473 recoveries, bringing the total number of recoveries to 1,506,273. There are 249 deaths, bringing the death toll to 17,191. There are 262,540 active cases, with 1,001 in intensive care and 470 on ventilator support. New Zealand has reported 53 new cases while one previously reported case was reclassified, bringing the total number to 3,697 (3,340 confirmed and 357 probable). There are six recoveries, bringing the total number of recoveries to 2,901. The death toll remains 26. There are 770 active cases (725 in the community and 45 in managed isolation). Singapore has reported 191 new cases including 187 locally transmitted and four imported, bringing the total to 67,991. Of the locally transmitted cases, 113 of them are unlinked. The country has vaccinated a total of 4,515,703 people, with 4,328,031 being fully vaccinated as of yesterday. The death toll remains at 55. Ukraine has reported 2,477 new daily cases and 44 new daily deaths, bringing the total number to 2,290,848 and 53,877 respectively; a total of 2,209,754 patients have recovered. The United States of America has reported a total of 39,544,270 cases. The death toll has reached 643,594.

3 September Fiji confirmed 253 new cases of COVID-19. 163 recoveries were reported. There are 16,352 active cases. Three new deaths were reported. Malaysia has reported 19,378 new cases, bringing the total number to 1,805,382. There are 22,399 new recoveries, bringing the total number of recoveries to 1,528,672. There are 330 deaths, bringing the death toll to 17,521. There are 259,189 active cases, with 975 in intensive care and 463 on ventilator support. New Zealand has reported 32 new cases, bringing the total number to 3,729 (3,372 confirmed and 357 probable). 47 have recovered, bringing the total number of recoveries to 2,958. The death toll remains 26. There are 755 active cases (731 in the community and 24 in managed isolation at the border). Singapore has reported 219 new cases including 216 locally transmitted and three imported, bringing the total to 68,210. Of the locally transmitted cases, 109 of them are unlinked. The country has vaccinated a total of 4,522,530 people, with 4,344,810 being fully vaccinated as of yesterday. The death toll remains at 55. Ukraine has reported 2,693 new daily cases and 45 new daily deaths, bringing the total number to 2,293,541 and 53,922, respectively; a total of 2,210,866 patients have recovered.

4 September Fiji confirmed 200 new cases and 16,537 active cases. Malaysia has reported 19,057 new cases, bringing the total number to 1,824,439. There are 21,582 new recoveries, bringing the total number of recoveries to 1,550,254. There are 362 deaths, bringing the death toll to 17,883. There are 256,302 active cases, with 978 in intensive care and 460 on ventilator support. New Zealand has reported 22 new cases while 3 previously reported cases were reclassified, giving a net increase of 19. There are a total of 3,748 cases (3,391 confirmed and 357 probable). 23 recoveries were reported, bringing the total number of recoveries to 2,973. One death was reported, bringing the death toll to 27. There are 751 active cases (728 in the community and 23 in the border). Singapore has reported 259 new cases including 253 locally transmitted and six imported, bringing the total to 68,469. Of the locally transmitted cases, 116 of them are unlinked. The country has vaccinated a total of 4,527,338 people, with 4,357,467 being fully vaccinated as of yesterday. The death toll remains at 55. Ukraine has reported 2,614 new daily cases and 44 new daily deaths, bringing the total number to 2,296,155 and 53,966 respectively; a total of 2,212,313 patients have recovered.

5 September Fiji confirmed 156 new COVID-19 cases and 696 recoveries. There are 15,997 active cases, bringing the total number of cases linked to the April outbreak to 47,795. Germany surpassed 4 million COVID-19 cases. Malaysia has reported 20,396 new cases, bringing the total number to 1,844,835. There are 20,573 recoveries, bringing the total number of recoveries to 1,570,827. There are 336 deaths, bringing the death toll to 18,219. There are 255,789 active cases, with 959 in intensive care and 436 on ventilator support. New Zealand has reported 25 new cases while five previously reported cases have been reclassified, giving a net increase of 20 cases. There are a total of 3,768 cases (3,412 confirmed and 356 probable). 27 have recovered, bringing the total number of recoveries to 2,998. The death toll remains 27. There are 743 active cases (721 in the community and 22 at the border). Russia surpassed 7 million COVID-19 cases. Singapore has reported 191 new cases including 186 locally transmitted and five imported, bringing the total to 68,660. Of the locally transmitted cases, 90 of them are unlinked. The country has vaccinated a total of 4,531,281 people, with 4,370,515 being fully vaccinated as of yesterday. The death toll remained at 55. Ukraine has reported 1,379 new daily cases and seventeen new daily deaths, bringing the total number to 2,297,534 and 53,983 respectively; a total of 2,212,720 patients have recovered.

6 September Fiji reported 128 new COVID-19 cases. 12 deaths were reported, bringing the death toll to 520. 1,687 new recoveries have been reported. There are 14,404 active cases. India has reported 38,948 new cases, bringing the total number to 33,027,621. 219 deaths were reported, bringing the death toll to 440,752. There are 43,903 recoveries, bringing the total number of recoveries to 32,181,995. There are 404,874 active cases. Malaysia has reported 17,352 new cases, bringing the total number to 1,862,187. There are 20,201 recoveries, bringing the total number of recoveries to 1,591,208. There are 272 deaths, bringing the death toll to 18,491. There are 252,668 active cases, with 975 in intensive care and 435 on ventilator support. New Zealand has reported 24 new cases, bringing the total number to 3,792 (3,436 confirmed and 356 probable). 38 have recovered, bringing the total number of recoveries to 3,036. The death toll remains 27. There are 729 active cases (704 confirmed and 25 at the border). Singapore has reported 241 new cases including 235 locally transmitted and six imported, bringing the total to 68,901. Of the locally transmitted cases, 110 of them are unlinked. The country has vaccinated a total of 4,533,475 people, with 4,378,769 being fully vaccinated as of yesterday. The death toll remains at 55. Ukraine has reported 773 new daily cases and eighteen new daily deaths, bringing the total number to 2,298,307 and 54,001 respectively; a total of 2,213,177 patients have recovered. The United Kingdom surpasses 7 million cases. The United States of America surpasses 40 million cases.

7 September World Health Organization weekly report: Fiji confirmed 160 new COVID-19 cases and five new deaths. Malaysia has reported 18,457 new cases, bringing the total number to 1,880,734. There are 18,902 recoveries, bringing the total number of recoveries to 1,609,930. There are 311 deaths, bringing the death toll to 18,802. There are 252,002 active cases, with 997 in intensive care and 447 on ventilator support. New Caledonia has reported three Delta variant cases in the community, prompting authorities to impose a lockdown. New Zealand has reported 22 new cases while one previously reported case has been reclassified, bringing the total number to 3,813 (3,457 confirmed and 356 probable). 30 have recovered, bringing the total number of recoveries to 3,066. The death toll remained at 27. There are 720 active cases (694 confirmed, 25 at the border and one case under investigation). Singapore has reported 332 new cases including 328 locally transmitted and four imported, bringing the total to 69,233. Of the locally transmitted cases, 185 of them are unlinked. The country has vaccinated a total of 4,536,986 people, with 4,385,405 being fully vaccinated as of yesterday. The death toll remained at 55. Ukraine has reported 2,197 new daily cases and 53 new daily deaths, bringing the total number to 2,300,504 and 54,054, respectively; a total of 2,214,606 patients have recovered.

8 September Fiji confirmed three new COVID-19 deaths including a four-month old baby, bringing the death toll to 528. There are 169 patients in hospital. Malaysia has reported 19,730 new cases, bringing the total number to 1,895,865. There are 22,701 recoveries, bringing the total number of recoveries to 1,632,628. There are 361 deaths, bringing the death toll to 19,163. There are 248,676 active cases, with 1,282 in intensive care and 744 on ventilator support. New Caledonian has confirmed a total of 16 active cases with six of them in intensive care in Noumea. New Zealand has reported 16 new cases, bringing the total number to 3,829 (3,473 confirmed and 356 probable). There are 78 recoveries, bringing the total number of recoveries to 3,144. The death toll remains 27. There are 658 active cases (21 at the border, 636 in the community, and one case under investigation). Singapore has reported 349 new cases including 347 locally transmitted and two imported, bringing the total to 69,582. The country has vaccinated a total of 4,540,422 people, with 4,391,303 being fully vaccinated as of yesterday. Another death was later confirmed, bringing the death toll to 56. Ukraine has reported 2,772 new daily cases and 60 new daily deaths, bringing the total number to 2,303,276 and 54,114 respectively; a total of 2,216,017 patients have recovered.

9 September Fiji has confirmed 179 new COVID-19 cases and 403 new recoveries, bringing the number of active cases to 13,362. Five new deaths were reported.