Concepts of Immunity and Recent Immunization Programme against COVID-19 in India
Keywords:
Vaccine, COVID-19, Immune response, Co-WINAbstract
To safely achieve herd immunity against COVID-19, a substantial proportion of a population would need to be vaccinated, lowering the overall amount of virus able to spread in the whole population. India has leveraged its manufacturing capacity to pre-order 600 million doses of potential COVID-19 vaccine and negotiating for another billion doses, says a new global analysis of advance market commitments (AMC) for vaccine candidates against the corona virus. India is planning to start the distribution of COVID-19 vaccine first to the healthcare workers followed by other groups to be added sequentially as there are five COVID-19 vaccines under trials in India such as COVAXIN, Covishield, ZyCoV-D, Sputinik and Biological E’s novel Covid-19 vaccine. Out of these five, COVAXIN and Covishield are approved by DCGI (Drugs Controller General of India) for restricted use in emergency situation.