Wall Street Journal: How the Swiss Cheese Model can help us beat COVID-19

No single solution will stop the virus’s spread, but combining different layers of public measures and personal actions can make a big difference.

It’s im­por­tant to un­der­stand that a vac­cine, on its own, won’t be enough to rapidly ex­tin­guish a pan­demic as per­ni­cious as Covid-19. The pan­demic can­not be stopped through just one in­ter­ven­tion, be­cause even vac­cines are im­per­fect. Once in­tro­duced into the hu­man pop­u­la­tion, viruses con­tinue to cir­cu­late among us for a long time. Fur­ther­more, it’s likely to be as long as a year be­fore a Covid-19 vac­cine is in wide-spread use, given in­evitable dif­fi­cul­ties with man­u­fac­tur­ing, dis­tri­b­u­tion and pub­lic ac­ceptance.

 Con­trol­ling Covid-19 will take a good deal more than a vac­cine. For at least an­other year, the world will have to rely on a mul­ti­pronged ap­proach, one that goes be­yond sim­plis­tic bro­mides and all-or-noth­ing re­sponses. In­di­vid­u­als, work-places and gov­ern­ments will need to con­sider a di­verse and some­times dis­rup­tive range of in­ter­ven­tions. It helps to think of these in terms of lay­ers of de­fence, with each layer pro­vid­ing a bar­rier that isn’t fully im­per­vi­ous, like slices of Swiss cheese in a stack.

 The ‘Swiss cheese model’ is a clas­sic way to con­cep­tu­al­ize deal­ing with a haz­ard that in­volves a mix­ture of hu­man, tech­no­log­i­cal and nat­ural el­e­ments.

This article can be read in full on the WSJ website, but is paywalled. 

The illustration showing the swiss cheese pandemic model is hyperlinked to this hub Learn post.