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NIAID (NIH) scientist researching COVID‑19 vaccine examines agar plate. (30 January 2020) After a coronavirus was isolated in December 2019, [1] its genetic sequence was published on 11 January 2020, triggering an urgent international response to prepare for an outbreak and hasten development of a preventive vaccine. [2] [3] [4]
The vaccine is the first COVID‑19 vaccine to be authorized by a stringent regulatory authority for emergency use [62] [63] and the first to be approved for regular use. [43] In December 2020, the United Kingdom was the first country to authorize its use on an emergency basis. [61] It is authorized for use at some level in the majority of ...
[70] [71] High efficacy is achieved with full immunization, two weeks after the second dose, and was evaluated at 94.1%: at the end of the vaccine study that led to emergency authorization in the US, there were eleven cases of COVID‑19 in the vaccine group (out of 15,181 people) versus 185 cases in the placebo group (15,170 people). [70]
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 ...
On Oct. 7, the FDA authorized the first over-the-counter home flu and COVID-19 combination test outside of emergency use authorization, which can detect SARS-CoV-2 (the virus that causes COVID-19 ...
The COVID‑19 vaccines are widely credited for their role in reducing the spread of COVID‑19 and reducing the severity and death caused by COVID‑19. [ 211 ] [ 217 ] According to a June 2022 study, COVID‑19 vaccines prevented an additional 14.4 to 19.8 million deaths in 185 countries and territories from 8 December 2020 to 8 December 2021 ...
The vaccines are safe and work. That’s what’s really important.” Getting a COVID vaccine during pregnancy benefits fetal health, new University of KY study finds
In the UK, 15,121 health care workers from 104 hospitals who had tested negative for antibodies prior to the study, were followed by RT-PCR tests twice a week from 7 December 2020 to 5 February 2021, a study compared the positive results for the 90.7% vaccinated share of their cohort with the 9.3% unvaccinated share, and found that the Pfizer ...