Immune Function in Offsprings of Females With Inflammatory Bowel Disease (IBD) Treated With Anti-TNF Medications During Pregnancy

1. To evaluate the immune response to vaccines in infants of IBD patients treated with anti-TNF medications during pregnancy compared to infants of IBD mother not treated with anti-TNF medications. 2. To evaluate the immune function of B and T cells at 3 months and one year of age in infants of IBD patients treated with anti-TNF medications during pregnancy compared to infants of non anti-TNF treated mothers. The secondary aims are to follow anti TNF drug levels in infants born to IBD patients treated with anti-TNF medications during pregnancy and to evaluate the risk of infections during the first year of life in this population, compared to children of IBD patients not treated with anti-TNF medications during pregnancy. Significance -The results of this study have the potential to change clinical practice of anti TNF treatment during pregnancy and the follow-up of infants born to these patients