WHO rejects SII's proposal seeking extension of Covishield's shelf life from 6 to 9 months

The WHO has rejected Serum Institute of India's proposal seeking extension of the shelf life of Oxford-AstraZeneca Covid-19 vaccine, Covishield, from six to nine months, citing insufficient data, sources said. The WHO has also sought a meeting with Drugs Controller General of India (DCGI) to discuss the matter, they said.
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