麻豆传媒

A microscopy image of vaginal tissue from a female macaque vaccinated with a version of the vaccine. The white line is the basal or base layer of the mucosal epithelium, which is the interior tissue lining; cells stained in blue have built up along the lining through the menses cycle; and cells glowing green contain the vaccine, forming the top layer of the lining, which pathogens would encounter first.