Figure 3From: Pathogenesis and prevention of placental and transplacental porcine reproductive and respiratory syndrome virus infectionPRRSV-positive macrophages in the endometrium (A) and placenta (B). PRRSV-positive macrophages (arrowed) in close proximity to the uterine (maternal) epithelium (mep) and fetal trophoblast cells (tr). MSF: maternal secondary fold.Back to article page