Friday Links

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Yes, this is O157:H7, not ExPEC. Bully for you.
While many laboratory experiments have shown that antibiotic resistance imposes a fitness cost on resistant bacteria, it's far less clear if this is the case in natural populations.
Yesterday, four people emailed me, asking about Brian Palmer's Slate article about antibiotic resistance. Since I'll probably get more such emails (and thank you for sending them), I'll offer my thoughts below:
I've written before about antibiotic resistance in the developing world.