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In December 2020, the CHMP started a rolling review of the Ad26.COV2.S COVID‑19 vaccine from Janssen-Cilag International N.V. [143] On 21 December 2020, the CHMP recommended granting a conditional marketing authorization for the Pfizer-BioNTech COVID‑19 vaccine, Comirnaty (active ingredient tozinameran), developed by BioNTech and Pfizer.
Anti-vaccine activists Robert F. Kennedy Jr. and Del Bigtree have suggested without evidence that the death of Baseball Hall of Fame member Hank Aaron was caused by receiving the COVID-19 vaccine. Aaron's death was reported as being due to natural causes, and medical officials did not believe the COVID-19 vaccine had any adverse effect on his ...
After the December 2020 introduction of COVID vaccines, a partisan gap in death rates developed, indicating the effects of vaccine skepticism. [291] As of March 2024, more than 30 percent of Republicans had not received a Covid vaccine, compared with less than 10 percent of Democrats. [291]
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]
On July 22, 2020, the U.S. government placed a conditional advance-purchase order of $2 billion with Pfizer to manufacture 100 million doses of a COVID-19 vaccine, with an option for 500 million more, for use in the United States if the vaccine was shown to be safe, effective, licensed, and authorized by the Food and Drug Administration (FDA).
The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, [2] [33] is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech. For its development, BioNTech collaborated with the American company Pfizer to carry out clinical trials , logistics, and manufacturing.
On 6 May, the Director-General of the WHO reported that, since the start of April, an average of 80,000 cases of COVID-19 per day had been reported to the WHO. [ 86 ] On 8 May, the Director-General of the WHO stated that the lessons learned from the eradication of smallpox four decades previously could be applied to the coronavirus pandemic.
These effects have persisted as US deaths due to COVID-19 in 2021 exceeded those in 2020. [362] In the United States, COVID-19 vaccines became available under emergency use in December 2020, beginning the national vaccination programme. The first COVID-19 vaccine was officially approved by the Food and Drug Administration on 23 August 2021. [363]