[Content of immunoglobulin in women's milk during the year after childbirth].

Immunoglobulin G during a normal pregnancy passes through the placenta to the fetal blood. The study aimed to evaluate the amount of immunoglobulins which may be transferred with maternal milk during one year following labour. In 1982-1986, 210 mothers who delivered healthy babies have been studied. A content of immunoglobulins was assayed in the colostrum and breast milk (after 1, 3, 6 and 12 months following labour). With radial diffusion technique described by Mancini et al. The results were expressed in mg% and analysed statistically. There were statistically significant differences in the mean IgA, IgG, and IgM levels in the maternal milk in various periods of lactation. No marked effect of passed maternal diseases during pregnancy (including infections) on the mean levels of the above immunoglobulins was noted one month after labour.