Kosan is using genetic engineering techniques to steal the blueprints that nature uses to make antibiotics.

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The finding helped solve a long-standing mystery of how soil bacteria could make such antibiotics and other druglike chemicals, called polyketides.

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It is more expensive to make than some antibiotics because it must be synthesized, not mass-produced by fermentation.

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There is evidence that some common antibiotics might not work and some experts believe antibiotics could make the illness worse.

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At the same time, you know, it's - there are drugs that make more money than antibiotics, so, you know, it is a fear question to ask, you know, where the priorities are.

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Scientists have known for decades that organisms as diverse as insects, frogs, pigs and humans make natural protein-based antibiotics to ward off microbes.

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Dr Hussey said whooping cough can be treated successfully with antibiotics and most people make a full recovery, but it is highly contagious.

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She is being treated with antibiotics and is expected to make a full recovery.

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It contains nothing artificial, absolutely no additives and furthermore, the provenance of the milk used to make it is well known: it contains no antibiotics, no steroids and no growth hormones.

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Quinolones, the only new class of antibiotics introduced over the last four decades, can have neurological and other side effects that make them particularly risky with kids, Kaplan says.

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