Hidden infection route of major bacterial pathogen uncovered

The pattern of infection of the bacterium responsible for causing severe lung infections in people with cystic fibrosis has been uncovered by scientists. Pseudomonas aeruginosa is usually harmless to humans, but in people with cystic fibrosis (CF) or who have weakened immune systems -- such as those who have had an operation or treatment for cancer -- it can cause infections that are resistant to antibiotics.

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