More needles in the haystack: vaccine candidates proliferate

That a coronavirus vaccine could be developed in a year is astonishing—and promising candidates just keep coming. How will the virus’s variants change the dynamic? Palestine may at last hold elections, after 15 years of promises. But Mahmoud Abbas, the incumbent president, may end up as the only viable candidate. And the probable first big market for lab-grown meat.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer