infection acquisition from infectious host infection acquisition from vertical transmission Matthew Diller An infection acquisition from infectious host by an embryo, fetus, or baby from its infectious mother while in utero, in egg at any point prior to hatching (even after laying), or during childbirth. An infection acquisition from infectious host by an embryo, fetus, or baby from its infectious mother while in utero, in egg at any point prior to hatching (even after laying), or during childbirth. William R. Hogan congenital infection acquisition infection acquisition from mother-to-child transmission