The mould that changed the world: Alexander Fleming's original penicillin fungus is regrown by scientists who sequence its genome for the first time | WHAT REALLY HAPPENED

The mould that changed the world: Alexander Fleming's original penicillin fungus is regrown by scientists who sequence its genome for the first time

Researchers cultivated mould from frozen samples of Fleming's original fungus
They then compared its genome with those of modern strains used industrially
These US versions make penicillin slightly differently to Flemings' wild UK strain

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