In an interview with Financial Times, Mr Poonawalla said the commitment to produce the vaccine far exceeded the capacity of manufacturers.
Politicians have promised vaccines by next month, as concerns rise that large pre-orders from the US and Europe will leave developing countries at the back of the queue.
It will take at least four years to make enough vaccines for the global population, the chief executive of the world’s largest vaccine manufacturer has said.
According to Serum Institute of India CEO Adar Poonawalla, Covid-19 vaccines will only be available in adequate numbers at the end of 2024 at the earliest because pharmaceutical companies were not increasing production capacity quickly enough to vaccinate the global population in less time.
