image: An immunological "clock" of pregnancy highlights key immune system features at certain time points during pregnancy. This material relates to a paper that appeared in the Sept. 1, 2017, issue of Science Immunology, published by AAAS. The paper, by N. Aghaeepour at Stanford University School of Medicine in Stanford, Calif., and colleagues was titled, "An immune clock of human pregnancy." view more
Credit: Carla Schaffer / AAAS