{HEAD ~ The present invention} is directed to {TAIL ~ a method} for the treatment and prevention and diagnosis of bacterial infection caused by Klebsiella pneumoniae and other gram negative bacteria in central nervous system and peripheral blood circulation in a mammal by administering an effective amount of outer membrane protein A or its derivatives to a mammal 
is directed to
{ HEAD ~ The present invention } is directed to { TAIL ~ a method } for the treatment and prevention and diagnosis of bacterial infection caused by Klebsiella pneumoniae and other gram negative bacteria in central nervous system and peripheral blood circulation in a mammal by administering an effective amount of outer membrane protein A or its derivatives to a mammal
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