How can bacteria that lives in the throat of 10%–35% of people—without causing an infection—cause life-threatening meningitis and sepsis in others?

A new study published in the journal PLOS Pathogens by scientists from Stockholm University in Sweden, led by Sara Sigurlásdóttir, reported finding the process Neisseria meningitidis bacteria use to move from a person’s throat to their brain, where they set up a serious brain infection.

Part of the path N. meningitidis takes to causing menigitis is already known. In the first critical step, the bacteria must colonize, i.e., set up an infection… more

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