How bacteria nearly killed by antibiotics can recover — and gain resistance

A protein that pumps toxic chemicals from the microbes allows some of them to resurge

resistant bacteria

PUMPED OUT  E. coli bacteria can become resistant to the antibiotic tetracycline by making a protein that pumps the drug out of a bacterial cell. Here, resistant bacteria that make the pump protein glow red, while bacteria that don’t make the pump (green) are filled with the antibiotic.

Sophie Nolivos

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