Fast tests for covid-19 are coming

AS NEWS EMERGEDThe Economist Today this week that an experimental vaccine against covid-19 has proved effective in late-stage clinical trials, hopes that the pandemic’s days may be numbered are running high (see ). But, even with the best of luck, it will be months before a vaccine starts to make a difference on the ground in those countries that get the first supplies of it, let alone the ones at the back of the queue. In the meantime, the pandemic juggernaut rolls on.