Even more alarming was that this strain of salmonella, known as multidrug-resistant infantis, was invincible against nearly all the drugs that doctors routinely use to fight severe food poisoning.

With a public health threat unfolding across the country, you might have expected federal regulators to act swiftly and decisively to warn the public, recall the contaminated poultry and compel changes at chicken plants. Or that federal investigators would pursue the root cause of the outbreak wherever the evidence led.

None of that happened.

Instead, the team at the Centers for Disease Control and Prevention closed the outbreak investigation nine months later even though people were continuing to get sick. The U.S. Department of Agriculture, which oversees meat and poultry, was not only powerless to act but said nothing to consumers about the growing threat. So supermarkets and restaurants continued selling chicken tainted with drug-resistant infantis.

And they continue to do so today.