Jose Angel Regla-Nava, Karla M Viramontes, Teodora Vozdolska, Anh-Thy Huynh, Tom Villani, Graeme Gardner, Michael Johnson, Pamela J Ferro, Sujan Shresta, Kenneth Kim
Clinical reports of Zika Virus (ZIKV) RNA detection in breast milk have been described, but evidence conflicts as to whether this RNA represents infectious virus. We infected post-parturient AG129 murine dams deficient in type I and II interferon receptors with ZIKV. ZIKV RNA was detected in pup stomach milk clots (SMC) as early as 1 day post maternal infection (dpi) and persisted as late as 7 dpi. In mammary tissues, ZIKV replication was demonstrated by immunohistochemistry in multiple cell types including cells morphologically consistent with myoepithelial cells...
February 11, 2019: PLoS Neglected Tropical Diseases