Weighing the choices: on precautionary vaccine doses
As India sees a steady slump in its daily coronavirus count, the Centre has announced opening up the third, or ‘precautionary doses’, to everyone over 18 years. A major aspect of vaccines is the risk of adverse events following vaccination, and previous experience has suggested that certain vaccines may induce a higher risk of blood clots in younger populations. With schools reopened, mask mandates made voluntary and restrictions on international travel lifted in India, it is reasonable for the Centre to anticipate a future wave led by a more transmissible variant — reports of the highly infectious XE variant have already surfaced here — and, therefore, take steps to buffer against it. Covaxin, following the World Health Organization’s recommendation to pause exports pending an upgrade of its production facilities, is also unlikely to see fresh stocks any time soon.
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