explain on covid- 19 vaccination
Answers
Answer:
A COVID‑19 vaccine is any of several different vaccines intended to provide acquired immunity against coronavirus disease 2019 (COVID‑19). Previous work to develop a vaccine against the coronavirus diseases SARS and MERS established knowledge about the structure and function of coronaviruses – which accelerated development during early 2020 of varied technology platforms for a COVID‑19 vaccine.[1] As of October 2020, there were 321 vaccine candidates in development, a 2.5 fold increase since April. However, no candidate has completed vaccine trials to prove its safety and efficacy.[2] In October, some 44 vaccine candidates were in clinical research: namely 34 in Phase I–II trials and 10 in Phase II–III trials.[2][3][4][5]
The World Health Organization (WHO), the Coalition for Epidemic Preparedness Innovations (CEPI), and the Gates Foundation (GF) are committing money and organizational resources for the prospect that several vaccines will be needed to prevent continuing COVID‑19 infection.[6] The CEPI, which is organizing a US$2 billion worldwide fund for rapid investment and development of vaccine candidates,[7] indicated in September that clinical data to support licensure may be available by the end of 2020.[2] On 4 May 2020, the WHO organized a telethon which received US$8.1 billion in pledges from forty countries to support rapid development of vaccines to prevent COVID‑19 infections.[8] At the same time, the WHO also announced the deployment of an international "Solidarity trial" for simultaneous evaluation of several vaccine candidates reaching Phase II–III clinical trials.[9]
covid 19 vacation has not come till now....
please post 50 marks question...
then I will give you 30 thanks...