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Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. The first known case was identified in Wuhan , China, in December 2019. [ 7 ] Most scientists believe the SARS-CoV-2 virus entered into human populations through natural zoonosis , similar to the SARS-CoV-1 and MERS-CoV outbreaks, and consistent ...
The treatment and management of COVID-19 combines both supportive care, which includes treatment to relieve symptoms, fluid therapy, oxygen support as needed, [1] [2] [3] and a growing list of approved medications. Highly effective vaccines have reduced mortality related to SARS-CoV-2; however, for those awaiting vaccination, as well as for the ...
The COVID-19 pandemic was covered in Wikipedia extensively, in real-time, and across multiple languages. This coverage extends to many detailed articles about various aspects of the topic itself, as well as many existing articles being amended to take account of the pandemic 's effect on them. [1] Wikipedia and other Wikimedia projects ...
COVID-19 is the deadliest pandemic in US history; [359] it was the third-leading cause of death in the US in 2020, behind heart disease and cancer. [360] From 2019 to 2020, US life expectancy dropped by 3 years for Hispanic Americans, 2.9 years for African Americans, and 1.2 years for white Americans. [361]
[b] The COVID-19 pandemic also led to misinformation and conspiracy theories [35] and highlighted weaknesses in the U.S. public health system. [16] [36] [37] In the United States, there have been 103,436,829 [3] confirmed cases of COVID-19 with 1,192,328 [3] confirmed deaths, the most of any country, and the 17th highest per capita worldwide. [38]
The ECDC and the European regional office of the WHO have issued guidelines for hospitals and primary healthcare services for shifting of resources at multiple levels, including focusing laboratory services towards COVID-19 testing, cancelling elective procedures whenever possible, separating and isolating COVID-19 positive patients, and ...
How COVID‑19 vaccines work. The video shows the process of vaccination, from injection with RNA or viral vector vaccines, to uptake and translation, and on to immune system stimulation and effect. Part of a series on the COVID-19 pandemic Scientifically accurate atomic model of the external structure of SARS-CoV-2. Each "ball" is an atom. COVID-19 (disease) SARS-CoV-2 (virus) Cases Deaths ...
Longer-term effects of COVID-19 have become a prevalent aspect of the disease itself. These symptoms can be referred to as many different names including post-COVID-19 syndrome, long COVID, and long haulers syndrome. An overall definition of post-COVID conditions (PCC) can be described as a range of symptoms that can last for weeks or months. [21]