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Last week, Prime Minister Narendra Modi raised concerns on vaccine wastage emerging from the Covid-19 inoculation drive. Vaccine wastage is an expected component of any large vaccination drive, and a vaccine is procured from the maker with an estimated wastage. For each vaccine type, the wastage has to be within recommended limits.
How is vaccine wastage quantified, why does it happen, and what are the ways in which it can be reduced? Take a look: