Donald Trump once declared mRNA vaccines a medical miracle, now his health Secretary is taking an axe to them.Robert F Kennedy Junior doesn’t believe in the science behind the vaccines that were deployed to save lives as Covid spread around the world and he’s cut nearly half a billion dollars in research funding.Today, professor of public health Julie Leask on what Kennedy’s anti-vaccine stance means for global health. Featured: Julie Leask, social scientist and professor in the School of Public Health at the University of Sydney

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