The Journal of infectious diseases 2016 06 29214(4) 612-6 doi 10.1093/infdis/jiw203
Humanized mice reconstituted with a human immune system can be mucosally infected with human immunodeficiency virus (HIV), opening up the possibility of studying HIV transmission in a small-animal model. Here we report that passive immunization with the broadly neutralizing antibody b12 protected humanized mice against repetitive intravaginal infection in a dose-dependent manner. In addition, treatment with the antibody PGT126, which is more potent in vitro, was more efficacious in vivo and provided sterilizing protection. Our results demonstrate that humanized mice can be used as a small-animal model to study the efficacy and mechanism of broadly neutralizing antibody protection against HIV acquisition.