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Immune stealth-driven O2 serotype prevalence and potential for therapeutic antibodies against multidrug resistant Klebsiella pneumoniae

The article shows the increased prevalence of Klebsiella pneumoniae O2 serotype strains in all major drug resistance groups correlating with a paucity of anti-O2 antibodies in human B cell repertoires. Anti-O2 specific antibodies  protect against drug-resistant strains in adjunctive therapy with meropenem.These findings support an antibody-based immunotherapeutic strategy even for highly resistant K.pneumoniae infections, and underscore the effect humoral immunity has on evolving drug resistance.

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