By David S. Martin
CNN

LONG BEACH, Calif. — For years, Alfonso Torress-Cook followed the rules in his quest to eliminate hospital-acquired infections. Patients at his hospital received large doses of antibiotics and were scrubbed down with alcohol-based soaps, as he and his colleagues aimed to kill every bacterium possible. Search and destroy was the mantra.

Still, patients became sick with bacterial infections after checking in. Some died.

"I never saw anything change. I saw things getting worse," Torress-Cook said.

Full story: Approximately 1 of 22 patients who a U.S. hospital acquires bacterial infection