On March 11, 2020, the World Health Organization (WHO) declared the Covid-19 spread as a pandemic. Since then, vaccine research has progressed at “pandemic speed”. And exactly nine months later, on December 11, the first Covid-19 vaccine — the one by Pfizer-BioNTech — received emergency use authorisation in the US.
In the absence of any specific treatment, the focus in the fight against the deadly infection has been on testing and preventing its spread. But with a calamitous second wave hitting India and a third wave looming, vaccinations remain the only hope of controlling this disease.
Scaling up production of vaccines to meet worldwide demand will have its own time lines. The limited availability of doses, at least initially, will necessitate the prioritisation of available vaccines. This would be to ensure maximisation of benefits of vaccination to both individual recipients and the population overall. Accordingly, vaccination was opened on January 16, 2021, for health care workers and essential service providers in India. Thereafter, in a phased manner, for senior citizens and those above 45 years. And only recently, for all above 18 years.
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