Commentary: How To Head Off The Next Tainted Food Disaster

We thought we had it beat. Back in the 1980s, a nasty bacterium called Listeria monocytogenes struck scores of people who had eaten contaminated cheese and meat. Dozens died. Alarmed regulators and companies leaped into action. By pasteurizing cheese and eliminating most bacteria from plants, they cut cases of Listeria almost in half.

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