Summary
Editor's note: Dr. Rallie McAllister has discontinued her column. In its place The News is running HealthBeat, by Associated Press Medical Writer Lauran Neergaard.
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Extract
Exploring the Bacterial Zoo
Antibiotics can temporarily upset your stomach, but now it turns out that repeatedly taking them can trigger long-lasting changes in all those good germs that live in your gut, raising questions about lingering ill effect...
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