The requirement of the vaccine doses is going to be very high. Given the fact almost all vaccines are going to work at least two doses, if we look at India’s population and decide to immunise 50 per cent of the population, we would require over 130 crore doses and that’s not the capacity anybody has.
Even if people have the capacity to produce, it cannot happen in one day. It can only happen over a long period,
said Zydus Cadila Chairman Pankaj R Patel.
Another challenge we would have is “how long the immunity will last with this vaccine? If the vaccine is going to give a long-term immunity, it will be wonderful, but if it provides short-term immunity then we will have to keep on immunising people again and again,” he added.