A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID‑19).
This article documents the chronology of the response to the COVID-19 pandemic in December 2020, which originated in Wuhan, China in December 2019. Some developments may become known or fully understood only in retrospect. Reporting on this pandemic began in December 2019.
This article documents the chronology of the response to the COVID-19 pandemic in February 2021, which originated in Wuhan, China in December 2019. Some developments may become known or fully understood only in retrospect. Reporting on this pandemic began in December 2019.
The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, 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. It is authorized for use in humans to provide protection against COVID-19, caused by infection with the SARS-CoV-2 virus. The vaccine is given by intramuscular injection. It is composed of nucleoside-modified mRNA (modRNA) that encodes a mutated form of the full-length spike protein of SARS-CoV-2, which is encapsulated in lipid nanoparticles. Initial guidance recommended a two-dose regimen, given 21 days apart; this interval was subsequently extended to up to 42 days in the United States, and up to four months in Canada.
The COVID-19 vaccination programme in the United Kingdom is an ongoing mass immunisation campaign for coronavirus disease 2019 (COVID-19) during the COVID-19 pandemic in the United Kingdom.
Israel's COVID-19 vaccination programme, officially named "Give a Shoulder", began on 19 December 2020, and has been praised for its speed, having given twenty percent of the Israeli population the first dose of the vaccines' two dose regimen in the span of three weeks.
The general COVID-19 vaccination in Australia program began on 22 February 2021 in response to the COVID-19 pandemic, with the goal of vaccinating all willing people in Australia before 2022. Front-line workers and aged care staff and residents had priority for being inoculated, before a gradual phased release to less-vulnerable and lower-risk population groups throughout 2021. The Therapeutic Goods Administration (TGA) approved four vaccines for Australian use in 2021: the Pfizer–BioNTech vaccine on 25 January, the Oxford–AstraZeneca vaccine on 16 February, Janssen vaccine on 25 June and the Moderna vaccine on 9 August. Although approved for use, the Janssen vaccine was not included in the Australian vaccination program as of June 2021.
COVID-19 vaccination in Canada is an ongoing, intergovernmental effort coordinated between the bodies responsible in the Government of Canada to acquire and distribute vaccines to individual provincial and territorial governments who in turn administer authorized COVID-19 vaccines during the COVID-19 pandemic in Canada. Provinces have worked with local municipal governments, hospital systems, family doctors and independently owned pharmacies to aid in part, or in full with vaccination rollout. The vaccination effort in full is the largest such immunization effort in the nation's history. The vaccination effort began December 14, 2020, and is currently ongoing.
COVID-19 vaccination in South Africa is an ongoing immunisation campaign against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19), in response to the ongoing pandemic in the country.
The COVID-19 vaccination campaign in the United States is an ongoing mass immunization campaign for the COVID-19 pandemic in the United States. The Food and Drug Administration (FDA) first granted emergency use authorization to the Pfizer–BioNTech vaccine on December 10, 2020, and mass vaccinations began four days later. The Moderna vaccine was granted emergency use authorization on December 17, 2020, and the Janssen vaccine was granted emergency use authorization on February 27, 2021. By April 19, 2021, all U.S. states had opened vaccine eligibility to residents aged 16 and over. On May 10, 2021, the FDA approved the Pfizer-BioNTech vaccine for adolescents aged 12 to 15. On August 23, 2021, the FDA granted full approval to the Pfizer–BioNTech vaccine for individuals aged 16 and over.
COVID-19 vaccination in New Zealand began on 20 February 2021, and will continue throughout the pandemic with the goal of vaccinating all willing New Zealanders aged 5 or older. Those aged 5 to 11 require a parent, caregiver or legal guardian accompany them to their appointment and provide consent for them to be vaccinated. As of 1 September, anyone in New Zealand, regardless of their immigration status, is eligible to be vaccinated.
The COVID-19 vaccination in Singapore is an ongoing immunisation campaign against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19), in response to the ongoing pandemic in the country. Singapore has a very high vaccination rate, with more than 92% of its total population having completed their vaccination regimen.
COVID-19 vaccination in Iceland is an effort to immunize the adult population of Iceland due to the COVID-19 pandemic. As of July 2021, more than 260,000 individuals had received at least one dose of COVID-19 vaccine, which was over 78% of the country's population. On November 21, 2021, 90% of the target population had been fully vaccinated, while around 1 in 5 people had received a booster on top of that; by December 9, 2021, the share of the population having received a booster shot exceeded 50%. On December 13, 2021, the country began offering Pfizer vaccinations to children aged 5–11.
This article documents the chronology of the response to the COVID-19 pandemic in June 2021, which originated in Wuhan, China in December 2019. Some developments may become known or fully understood only in retrospect. Reporting on this pandemic began in December 2019.
The following is a timeline of the COVID-19 pandemic in the United Kingdom from July 2021 to December 2021.
The COVID-19 vaccination campaign in Ukraine is an ongoing mass immunization campaign for the COVID-19 pandemic in Ukraine.
This article documents the chronology of the response to the COVID-19 pandemic in October 2021, which originated in Wuhan, China in December 2019. Some developments may become known or fully understood only in retrospect. Reporting on this pandemic began in December 2019.
This article documents the chronology of the response to the COVID-19 pandemic in November 2021, which originated in Wuhan, China in December 2019. Some developments may become known or fully understood only in retrospect. Reporting on this pandemic began in December 2019.
This article outlines the history of the COVID-19 pandemic in the United Kingdom. Though later reporting indicated that there may have been some cases dating from late 2019, COVID-19 was confirmed to be spreading in the UK by the end of January 2020. The country was initially relatively slow implementing restrictions but a legally enforced stay-at-home order had been introduced by late March. Restrictions were steadily eased across the UK in late spring and early summer that year.
COVID-19 portal 