Warning of word food shortage

This is from  yesterday's Guardian. Isn't clear that food has to run out. How can the chain stay in place if farmers, truck drivers, mechanics fall victim to Covid-19?
On German television last evening a truck driver pointed out how so much of the infrastructure is simply collapsing.
What will happen when Covid-19 hits Africa and India?
Can war be far away?
Where are there world leaders to step forward?
It seems US President Trump is running out of lines.

Foodsupplies across the world will be “massively disrupted” by the coronavirus, and unless governments act the number of people suffering chronic hunger could double, some of the world’s biggest food companies have warned, writes Fiona Harvey, the Guardian’s environment correspondent.

Unilever, Nestlé and PepsiCo, along with farmers’ organisations, the UN Foundation, academics, and civil society groups, have written to world leaders, calling on them to keep borders open to trade in order to help society’s most vulnerable, and to invest in environmentally sustainable food production.

They urge governments to “take urgent coordinated action to prevent the Covid-19 pandemic turning into a global food and humanitarian crisis”. Maintaining open trade will be key, as will investing in food supply chains and protecting farmers in the developed and developing world, they say.

The G20 is coming under increasing pressure to act: a group of Nobel prize-winning economists and former senior development bank officials wrote to the forum advising that trillions of dollars would be needed to help the developing world cope with the Covid-19 pandemic. This week more than 100 former heads of government, including Tony Blair, Gordon Brown and Nicolas Sarkozy, also called on the G20 to act urgently or risk recurrent outbreaks.