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The race is on for a vaccine against COVID-19.

Around the world, there are already 70 official candidate vaccines in development,

and the real total may be twice that number.

Hello and welcome to Babbage from Economist Radio,

our weekly podcast on technology and science.

I'm Kenneth Cookeye, a senior editor at the Economist.

Today's show is on the global efforts to develop and manufacture a vaccine for the novel coronavirus.

Trials on animals have begun in Australia.

In fact, the two that we are trialling now were really the first two off the block.

And once a vaccine is found, how could it be distributed thoroughly?

It is, of course, understandable that governments whose main role is to protect their citizens

are thinking about their own countries.

But of course, if you want the best product and the best success, you have to think global.

Vaccines have been used to help people beat viruses for well over a century.

Now scientists and laboratories around the world are striving to find a vaccine that will produce an immunity against SARS-CoV-2,

...