Main articles: COVID-19 pandemic deaths and COVID-19 pandemic death rates by country
Further information: List of deaths due to COVID-19
The deceased in a refrigerated "mobile morgue" outside a hospital in Hackensack, New Jersey, US, in April 2020
Gravediggers bury the body of a man suspected of having died of COVID-19 in the cemetery of Vila Alpina, east side of São Paulo, in April 2020.
Global excess and reported COVID-19 deaths and deaths per 100,000 according to the WHO study[61]
As of 10 March 2023, more than 6.88 million[8] deaths had been attributed to COVID-19. The first confirmed death was in Wuhan on 9 January 2020.[62] These numbers vary by region and over time, influenced by testing volume, healthcare system quality, treatment options, government response,[63] time since the initial outbreak, and population characteristics, such as age, sex, and overall health.[64]
Multiple measures are used to quantify mortality.[65] Official death counts typically include people who died after testing positive. Such counts exclude deaths without a test.[66] Conversely, deaths of people who died from underlying conditions following a positive test may be included.[67] Countries such as Belgium include deaths from suspected cases, including those without a test, thereby increasing counts.[68]
Official death counts have been claimed to underreport the actual death toll, because excess mortality (the number of deaths in a period compared to a long-term average) data show an increase in deaths that is not explained by COVID-19 deaths alone.[69] Using such data, estimates of the true number of deaths from COVID-19 worldwide have included a range from 18.2 to 33.5 million (≈27.4 million) by 18 November 2023 by The Economist,[7][69] as well as over 18.5 million by 1 April 2023 by the Institute for Health Metrics and Evaluation[70] and ≈18.2 million (earlier) deaths between 1 January 2020, and 31 December 2021, by a comprehensive international study.[71] Such deaths include deaths due to healthcare capacity constraints and priorities, as well as reluctance to seek care (to avoid possible infection).[72] Further research may help distinguish the proportions directly caused by COVID-19 from those caused by indirect consequences of the pandemic.[71]
In May 2022, the WHO estimated the number of excess deaths by the end of 2021 to be 14.9 million compared to 5.4 million reported COVID-19 deaths, with the majority of the unreported 9.5 million deaths believed to be direct deaths due the virus, rather than indirect deaths. Some deaths were because people with other conditions could not access medical services.[73][74]
A December 2022 WHO study estimated excess deaths from the pandemic during 2020 and 2021, again concluding ≈14.8 million excess early deaths occurred, reaffirming and detailing their prior calculations from May as well as updating them, addressing criticisms. These numbers do not include measures like years of potential life lost and may make the pandemic 2021's leading cause of death.[75][76][61]
The time between symptom onset and death ranges from 6 to 41 days, typically about 14 days.[77] Mortality rates increase as a function of age. People at the greatest mortality risk are the elderly and those with underlying conditions.[78][79]