Strait of tension: Chinese jets test Taiwan

<p>China has sent more than 100 planes to probe Taiwan’s air-defence zone. We explain why Beijing has chosen this moment to send a message across the strait. The WHO has approved a vaccine against malaria—a turning-point in fighting a disease that kills 260,000 African children a year. And if you want a Nobel prize, it helps to be lauded by a laureate.&nbsp;&nbsp;&nbsp;&nbsp;</p><p>For full access to print, digital and audio editions of <em>The Economist</em>, subscribe here <a href="http://www.economist.com/intelligenceoffer" rel="noopener noreferrer" target="_blank">www.economist.com/intelligenceoffer</a></p> &#10;&nbsp;<br /><hr><p style='color: grey; font - size: 0.75em; '>See <a style='color: grey; ' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for privacy and opt-out information.</p>