London: The UK approved the two vaccines, Pfizer and Oxford/AstraZeneca jabs are the two vaccines against coronavirus. AstraZeneca says it expects 2 million doses of the Oxford University vaccine to be ready each week in just over a fortnight. "The plan is then to build it up fairly rapidly; by the third week of January we should get to 2 million a week," an AstraZeneca source told 'The Times' newspaper.On the other hand, Pfizer BioNTech said the number of doses it has now sent to the UK is "in the millions".A Pfizer spokesperson said, "The deliveries to the UK are on track and progressing according to our agreed schedule." Meanwhile, there are growing questions on whether Britain could have had more supplies ready to go, similar to how India has created a massive vaccine stockpile in advance, according to 'The Daily Telegraph'. Pune-based Serum Institute of India has a licensing tie-up for the Oxford vaccine. It has emerged that India has already managed to stockpile 50 million doses of the jabs. "The rate-limiting factor at the moment, as they say, is supply not distribution," UK Prime Minister Boris Johnson told a Downing Street briefing earlier in the week. Also Read: UK Abolishes ‘tampon Tax’ On All Menstrual Products Mexican doctor admitted to ICU after receiving Pfizer corona vaccine Overseas Indians set new record in UAE