London, Feb 26 The Covid-19 vaccination program in England had seen an estimated wastage of around 4.7 million doses, or four per cent of total supply, by the end of October 2021, said a government report released.
Among the vaccine jabs that were thrown away, 1.9 million doses were unused after changes to clinical advice about the AstraZeneca vaccine, said the National Audit Office in the report about the rollout of the program.
In May 2021, Britain's vaccine advisory body, the Joint Committee on Vaccination and Immunisation, issued advice to the government that those aged under 40 years should preferably not be offered AstraZeneca, Xinhua news agency reported.
Following this, the vaccination program faced "a particular challenge" regarding expiring supplies of AstraZeneca vaccine, according to the report.
The four per cent of total supply came lower than 15 to 20 per cent that the vaccine program initially assumed, the office said.
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