invariably , the younger children , who primarily had meningitis , had a prp concentration of greater than 10 ng/ml and failed to develop an antibody response in any isotype , whereas the older patients , who primarily had infections other than meningitis , had a prp concentration of less than 10 ng/ml and a 45.5 % success rate in developing an antibody response ( p = 0.006 ) .
C0025289
meningitis
C0729584
infections