Editor's note

The World Health Organization is urging governments everywhere to “test, test, test” as the coronavirus sweeps through every continent. You can’t fight an enemy blindfolded, we are told. It’s imperative to learn from the successes of South Korea and China and put every last citizen under the microscope.

The UK, the US and countless other countries are pulling out the stops to follow this advice, with varying success. Every day they field ferocious questions from journalists about why they wasted valuable weeks of testing time, why they’re so far behind the curve, why they can’t keep up with the unstoppable Germans. But Cam Donaldson, a leading health economist, argues that this is a global wild goose chase. Test all your healthcare workers by all means, he says, but also face up to some inconvenient but rational arguments as to why mass testing is not the way to go.

We also bring you news of some cutting-edge research in the global race to defeat the virus from Dundee in Scotland – drawing on the good offices of a few sheep and an army of bacteria.

And lest we forget the beautiful moment when the entire British public stepped outside to applaud frontline NHS workers the other day, a neuropsychologist explains why it felt so uplifting.

Steven Vass

Scotland Editor

Top stories

Swab testing. Ben Birchall/PA

Coronavirus: as a health economist, I’m not convinced the case for mass testing stacks up

Cam Donaldson, Glasgow Caledonian University

The hard truth is that this ship has probably sailed.

Fotogrin/Shutterstock

Sheep and bacteria are helping in the fight against coronavirus – here’s how

Paul Davies, University of Dundee

The science of making reagents, the chemicals needed for the COVID-19 finger-prick test.

People clap from a balcony during a collective scheduled clapping event in honor of workers of the sanitary and health sector in Orense, northwest Spain, 29 March 2020. EPA/Brais Lorenzo

Coronavirus: why clapping for carers feels so strangely uplifting

Catherine Loveday, University of Westminster

Clapping is the auditory equivalent of a group hug, according to neuroscience.

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