Characteristics of immune responses to native and protein conjugated pneumococcal polysaccharide type 14.


The immune response to pneumococcal polysaccharide type 14 (PPS-14), induced by native PPS-14 was compared with the response induced by PPS-14 conjugated with CRM197 (PPS-14-CRM197). In our animal model, immunization with PPS-14-CRM197 gave a significant enhancement of anti-PPS-14 serum titres for IgM and IgG, but not for IgA. Also an increase in total… (More)


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