COVID-19 pandemic
Pandemic caused by SARS-CoV-2 / From Wikipedia, the free encyclopedia
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The COVID-19 pandemic, also known as the coronavirus pandemic, is a global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in Wuhan, the capital of Hubei, China, in December 2019, before it spread to other areas of Asia, and then worldwide in early 2020. The World Health Organization (WHO) declared the outbreak a public health emergency of international concern (PHEIC) on 30 January 2020, and assessed the outbreak had become a pandemic on 11 March 2020.[3] The WHO ended the PHEIC on 5 May 2023.[4] As of 24 May 2024, the pandemic has caused 7,047,741[5] confirmed deaths, making it the fifth-deadliest pandemic or epidemic in history.
| COVID-19 pandemic | |||||||
|---|---|---|---|---|---|---|---|
 Medical professionals treating a COVID-19 patient in critical condition in an intensive care unit in São Paulo in May 2020 | |||||||
 Confirmed deaths per 100,000 population
as of 20 December 2023 | |||||||
| |||||||
| Disease | Coronavirus disease 2019 (COVID-19) | ||||||
| Virus strain | Severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) | ||||||
| Source | Bats,[1] indirectly[2] | ||||||
| Location | Worldwide | ||||||
| Index case | Wuhan, China 30°37′11″N 114°15′28″E | ||||||
| Dates | Assessed by WHO as pandemic: 11 March 2020 (4 years and 2 months ago)[3]
Public health emergency of international concern: 30 January 2020 – 5 May 2023 (3 years, 3 months and 5 days)[4] | ||||||
| Confirmed cases | 775,431,255[5] (true case count is expected to be much higher[6]) | ||||||
Deaths | 7,047,741[5] (reported) 18.2–33.5 million[7] (estimated) | ||||||
| Fatality rate | As of 10 March 2023: 1.02%[8][needs update] | ||||||
COVID-19 symptoms range from asymptomatic to deadly, but most commonly include fever, sore throat, nocturnal cough, and fatigue. Transmission of the virus is often through airborne particles. Mutations have produced many strains (variants) with varying degrees of infectivity and virulence.[9]
COVID-19 vaccines were widely deployed in various countries beginning in December 2020. Treatments include novel antiviral drugs and symptom control. Common mitigation measures during the public health emergency included travel restrictions, lockdowns, business restrictions and closures, workplace hazard controls, mask mandates, quarantines, testing systems, and contact tracing of the infected.
The pandemic caused severe social and economic disruption around the world, including the largest global recession since the Great Depression.[10] Widespread supply shortages, including food shortages, were caused by supply chain disruptions and panic buying. Reduced human activity led to an unprecedented temporary decrease in pollution. Educational institutions and public areas were partially or fully closed in many jurisdictions, and many events were cancelled or postponed during 2020 and 2021. Telework became much more common for white-collar workers as the pandemic evolved. Misinformation circulated through social media and mass media, and political tensions intensified. The pandemic raised issues of racial and geographic discrimination, health equity, and the balance between public health imperatives and individual rights.