Leaders tackle global question of how to persuade people to get Covid jab

Spectrum of measures including incentives and hardline laws have met with responses varying from rise in uptake to wave of protests

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Last week, the president of the Philippines, Rodrigo Duterte, appeared on television for a late-night address.

The hardliner has previously pushed a shoot-to-kill policy against drug gangs, but had something else on his mind this time: the coronavirus pandemic and those refusing to be vaccinated, who he suggested should be compelled to stay at home.