Booster shots—are they necessary?
Our podcast on the science and technology making the news. Also this week: a study in Bangladesh finds simple ways to encourage mask use, and we reveal our book competition winner
AS THE northern hemisphere heads towards its second pandemic winter, some countries have already started to make third doses of vaccine available to their most vulnerable citizens. But scientists disagree about whether offering boosters is the best use of vaccine resources—or necessary at all. And, a big study in Bangladesh finds simple ways to encourage mask use. Also, we reveal our book competition winner. Kenneth Cukier hosts. Runtime: 24 min
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