| studies on the epidemiology of child infections in the bari area. i. current state of immunity against coxsackie b viruses. | the presence and titer of neutralizing antibodies against coxsackie b viruses were investigated in 1,944 children under 15 years of age living in bari and its area. in 1,781 out of 1,944 sera (91.6%), neutralizing antibodies were present against at least one of the strains tested: 333 (17.1%) samples were found to be positive for one serotype only, 412 (21.2%) for 2 serotypes, 394 (20.3%) for 3, 394 (18.0%) for 4, 199 (10.2%) for 5 and 94 (4.8%) for all 6 strains tested. of the 1,944 serums exam ... | 1991 | 1650961 |