Is it right to give over 50s a third jab – when so many haven’t even had one?

The booster programme may be well underway, but some scientists - including vaccine queen Dame Professor Sarah Gilbert - have deemed the top up jabs unnecessary, given that immunity from the two doses seems to be lasting well. Others say it's unethical when low-income countries have limited supplies. The Medical Minefield team hear from Dr Penny Ward, visiting professor in pharmaceutical medicine at King's College London, who says boosting healthy adults is the right decision, and Dr David Strain, Senior Clinical Lecturer at the University of Exeter Medical School, who says we musn't give up on the unvaccinated.

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