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

Case statistics

Pandemic chronology 1 April Chile surpasses 1 million COVID-19 cases. Malaysia has reported 1,178 new cases, bringing the total number to 346,678. 1,377 have recovered, bringing the total number of recoveries to 331,001. There are six deaths, bringing the death toll to 1,278. There are 14,399 active cases, with 163 in intensive care and 81 on ventilator support. New Zealand has reported five new cases, bringing the total number to 2,501 (2,145 confirmed and 356 probable). Nine people have recovered, bringing the total number of recoveries to 2,408. The death toll remains 26. There are 67 active cases, with one previously reported case being reclassified as under investigation. Singapore has reported 26 new imported cases, bringing the total to 60,407. There are 12 recoveries, bringing the total number of recoveries to 60,161. The death toll remains at 30. Ukraine has reported 17,569 new daily cases and a record 421 new daily deaths, bringing the total number to 1,691,737 and 33,246 respectively; a total of 1,323,083 patients have recovered.

2 April Malaysia has reported 1,294 new cases, bringing the total number to 347,972. There are 1,442 recoveries, bringing the total number of recoveries to 332,443. There are five deaths, bringing the death toll to 1,283. There are 14,246 active cases, with 168 in intensive care and 78 on ventilator support. Singapore has reported 43 new imported cases, bringing the total to 60,450. 15 people have recovered, bringing the total number of recoveries to 60,176. The death toll remains at 30. Ukraine has reported a record 19,893 new daily cases and a record 433 new daily deaths, bringing the total number to 1,711,630 and 33,679 respectively; a total of 1,333,370 patients have recovered.

3 April Canada surpasses 1 million COVID-19 cases. Malaysia has reported 1,638 new cases, bringing the total number to 349,610. There are 1,449 recoveries, bringing the total number of recoveries to 333,892. There are three deaths, bringing the death toll to 1,286. There are 14,432 active cases, with 167 in intensive care and 81 on ventilator support. Russia has reported 384 new human fatality relative cases, surpassing 100,000 death relative cases, since the first of the pandemic, bringing the total human fatality relative cases to 100,017. Singapore has reported 18 new cases including one in community and 17 imported, bringing the total to 60,468. Nine have been discharged, bringing the total number of recoveries to 60,185. The death toll remains at 30. Ukraine has reported a record 20,341 new daily cases and 396 new daily deaths, bringing the total number to 1,731,971 and 34,075 respectively; a total of 1,342,536 patients have recovered. Alberto Fernandez, President of Argentina has tested positive infection for COVID-19.

4 April Malaysia has reported 1,349 new cases, bringing the total number to 350,959. There are 1,270 recoveries, bringing the total number of recoveries to 335,162. There are two deaths, bringing the death toll to 1,288. There are 14,509 active cases, with 186 in intensive care and 94 on ventilator support. New Zealand has reported six new cases, bringing the total number to 2,507 (2,151 confirmed and 356 probable). 12 people have recovered, bringing the total number of recoveries to 2,420. The death toll remains 26. There are 61 active cases in managed isolation. Singapore has reported 10 new imported cases, bringing the total to 60,478. There are 17 recoveries, bringing the total number of recoveries to 60,202. The death toll remains at 30. Ukraine has reported 13,738 new daily cases and 258 new daily deaths, bringing the total number to 1,745,709 and 34,333 respectively; a total of 1,347,193 patients have recovered.

5 April Brazil surpasses 13 million COVID-19 cases. Malaysia has reported 1,070 cases, bringing the total number to 352,029. There are 1,294 new recoveries, bringing the total number of recoveries to 336,456. There are seven deaths, bringing the death toll to 1,295. There are 14,278 active cases, with 180 in intensive care and 89 on ventilator support. Singapore has reported 17 new imported cases, bringing the total to 60,495. 12 people have recovered, bringing the total number of recoveries to 60,214. The death toll remains at 30. Ukraine has reported 10,179 new daily cases and 254 new daily deaths, bringing the total number to 1,755,888 and 34,587 respectively; a total of 1,352,139 patients have recovered. Japan confirms a new variant of COVID-19 called EEK.

6 April World Health Organization weekly report. Indonesia reported the first case of the EEK coronavirus variant. Malaysia has reported 1,300 new cases, bringing the total number to 353,329. There are 1,412 new recoveries, bringing the total number of recoveries to 337,868. There are five deaths, bringing the death toll to 1,300. There are 14,161 active cases, with 189 in intensive care and 88 on ventilator support. New Zealand has reported 17 new cases, bringing the total number to 2,524 (2,168 confirmed and 356 probable). Four people have recovered, bringing the total number of recoveries to 2,424. The death toll remains 26. There are 74 active cases in managed isolation. Singapore has reported 24 new imported cases, bringing the total to 60,519. 25 have been discharged, bringing the total number of recoveries to 60,239. The death toll remains at 30. Ukraine has reported 13,276 new daily cases and 430 new daily deaths, bringing the total number to 1,769,164 and 35,017 respectively; a total of 1,362,379 patients have recovered. According to Johns Hopkins University, the global coronavirus death toll is approaching 3 million. Federico Bernardeschi, an Italian professional footballer, (Juventus FC) has tested positive for COVID-19.

7 April Malaysia has reported 1,139 new cases, bringing the total number to 354,468. 1,199 have recovered, bringing the total number of recoveries to 339,067. Four deaths were reported, bringing the death toll to 1,304. There are 14,097 active cases, with 194 in intensive care and 86 on ventilator support. New Zealand has reported seven new cases, bringing the total number to 2,531 (2,175 confirmed and 356 probable). The number of recoveries remains 2,424 while the death toll remains 26. There are 81 cases in managed isolation. Singapore has reported 35 new cases including one in community and 34 imported, bringing the total to 60,554. There are 21 recoveries, bringing the total number of recoveries to 60,260. The death toll remains at 30. Ukraine has reported 15,415 new daily cases and a record 481 new daily deaths, bringing the total number to 1,784,579 and 35,498 respectively; a total of 1,373,851 patients have recovered. Saksayam Chidchob, Thailand Transport Minister, has tested positive for COVID-19.

8 April Malaysia has reported 1,285 new cases, bringing the total number to 355,753. There are 1,175 recoveries, bringing the total number of recoveries to 340,242. There are four deaths, bringing the death toll to 1,308. There are 14,203 active cases, with 186 in intensive care and 81 on ventilator support. New Zealand has reported 24 new cases, bringing the total number to 2,555 (2,199 confirmed and 356 probable). 10 recoveries were reported, bringing the total number of recoveries to 2,434. The death toll remains 26. There are 95 cases in managed isolation. Singapore has reported 21 new imported cases, bringing the total to 60,575. 24 people have recovered, bringing the total number of recoveries to 60,284. The death toll remains at 30. Ukraine has reported 19,419 new daily cases and 464 new daily deaths, bringing the total number to 1,803,998 and 35,962 respectively; a total of 1,383,883 patients have recovered. The United States of America reports 31.1 million COVID-19 cases.

9 April France surpasses 5 million COVID-19 cases. India surpasses 13 million COVID-19 cases. Iran surpasses 2 million COVID-19 cases. Malaysia has reported 1,854 new cases, bringing the total number to 357,607. There are 1,247 new recoveries, bringing the total number of recoveries to 341,489. There are five deaths, bringing the death toll to 1,313. There are 14,805 active cases, with 169 in intensive care and 79 on ventilator support. New Zealand has reported six new cases, bringing the total number to 2,561 (2,205 confirmed and 356 probable). Six have recovered, bringing the total number of recoveries to 2,440. The death toll remains 26. There are 95 cases in managed isolation. Singapore has reported 26 new imported cases, bringing the total to 60,601. 20 have been discharged, bringing the total number of recoveries to 60,304. The death toll remains at 30. Ukraine has reported 19,676 new daily cases and 419 new daily deaths, bringing the total number to 1,823,674 and 36,381 respectively; a total of 1,395,104 patients have recovered.

10 April Malaysia has reported 1,510 new cases, bringing the total number to 359,117. There are 1,248 recoveries, bringing the total number of recoveries to 342,737. There are eight deaths, bringing the death toll to 1,321. There are 15,059 active cases, with 194 in intensive care and 81 on ventilator support. New Zealand has reported 10 new cases, bringing the total number to 2,571 (2,215 confirmed and 356 probable). The number of recoveries remains 2,440 while the death toll remains 26. There are 105 active cases in managed isolation. Singapore has reported 32 new cases including one in community and 31 imported, bringing the total to 60,633. There are 18 recoveries, bringing the total number of recoveries to 60,322. The death toll remains at 30. Ukraine has reported 17,463 new daily cases and 398 new daily deaths, bringing the total number to 1,841,137 and 36,779 respectively; a total of 1,405,826 patients have recovered. Romania surpasses 1 million COVID-19 cases.

11 April Malaysia has reported 1,739 new cases, bringing the total number to 360,856. There are 1,216 recoveries, bringing the total number of recoveries to 343,953. There are eight deaths, bringing the death toll to 1,329. There are 15,574 active cases, with 183 in intensive care and 81 on ventilator support. New Zealand has reported three new cases, bringing the total number to 2,574 (2,218 confirmed and 356 probable). The number of recoveries remains 2,440 while the death toll remains 26. There are 108 active cases in managed isolation. Singapore has reported 20 new cases including one residing in a dormitory and 19 imported, bringing the total to 60,653. 13 people have recovered, bringing the total number of recoveries to 60,335. The death toll remains at 30. Ukraine has reported 12,112 new daily cases and 235 new daily deaths, bringing the total number to 1,853,249 and 37,014 respectively; a total of 1,410,860 patients have recovered.

12 April Germany surpasses 3 million COVID-19 cases. Malaysia has reported 1,317 new cases, bringing the total number to 362,173. There are 1,052 new recoveries, bringing the total number of recoveries to 345,005. There are four deaths, bringing the death toll to 1,333. There are 15,835 active cases, with 188 in intensive care and 84 on ventilator support. New Zealand has reported nine new cases, bringing the total number to 2,583 (2,227 confirmed and 356 probable). There are 17 recoveries, bringing the total number of recoveries to 2,457. The death toll remains 26. There are 100 active cases in managed isolation. Singapore has reported 25 new imported cases, bringing the total to 60,678. 22 have been discharged, bringing the total number of recoveries to 60,357. The death toll remains at 30.