Reduced Transplacental Transfer of Group B Streptococcus Surface Protein Antibodies in HIV-infected Mother-Newborn Dyads.We evaluated the effect of maternal HIV infection on transplacental antibody transfer specific to 8 group B Streptococcus (GBS) surface proteins among 81 HIV-uninfected and 83 HIV-infected mother-newborn pairs using a multiplex immunoassay. 
multiplex immunoassay