Nairobi, April 7 -- Please support our food transporters. For, as we move into lockdown in Nairobi, our bodies won't cease functioning. Food remains essential, and the government has rightly classed it so, for the attitude we adopt now towards food supplies will define the outcome of the most difficult calculation in living history.

Nearly every nation, our own included, has decided that preventing Covid-19 from spreading is a high enough priority to merit closing down our economies for 2020. Not every nation has made that same decision - Sweden hasn't.

It is still open, at work, and in business. But most nations on Earth have moved to close schools, workplaces, borders, movement, and much more, in an effort to stop the spread of this new...