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Virus-induced fever might change bacteria from commensal to pathogen

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Neisseria meningitidis may cause septicemia (bacteria in the blood) and meningitis (infection of the membrane surrounding the brain), but the bacterium colonizes the nasopharynx in 10-20% of the human population without causing disease. Although understanding how the bacterium changes from a commensal to a pathogen has been elusive, an important property is believed to be the ability to resist destruction by the immune response. Fever caused by a viral infection might be the trigger that makes N. meningitidis evade immunity.
 
 

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