The Swiss cheese model of pandemic defense

The metaphor is easy enough to grasp: Multiple layers of protection, imagined as cheese slices, block the spread of the new coronavirus, SARS-CoV-2, the virus that causes COVID-19. No one layer is perfect; each has holes, and when the holes align, the risk of infection increases.

from Healthcare/Biotech-Industry-Economic Times https://ift.tt/33SAbd8
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