Immunoglobulins are in general very large molecules and do no pass into milk. In addition, infants are given immunoglobulii directly. Immunoglobulins contain passive protective antibodie and are not contraindicated for newborns, and would not be con traindicated for a breastfeeding mother.
Immunoglobulin is used with specific immunoglobulins in higl titer, such as immunoglobulin hepatitis B (Hepatitis B Imniuni Globulin) (HBIG), which is used when there is known exposure t< hepatitis B. If the mother is hepatitis-positive, the recommende« regime is to give the newborn immunoglobulin within 12 hours o birth, plus the first dose of hepatitis B vaccine. If a mother i exposed to hepatitis B while breastfeeding, HBIG would not put thi child at any risk via the breast milk. If the child required HBIG a the same time, it would be necessary to medicatc the child dircctlj
Varicella Zoster Immune Globulin (VZIG) is obtained from th> plasma of adult volunteer blood donors. VZIG is given during preg nancy and is also given directly to infants, so should pose no risk t< the breastfed infant. As above, if there is the risk of varicella, th> infant should receive a dose directly.
Recommendation. Immunoglobulins are given directly to infants and are not contraindicated during lactation.
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For many years, scientists have been playing out the ingredients that make breast milk the perfect food for babies. They've discovered to day over 200 close compounds to fight infection, help the immune system mature, aid in digestion, and support brain growth - nature made properties that science simply cannot copy. The important long term benefits of breast feeding include reduced risk of asthma, allergies, obesity, and some forms of childhood cancer. The more that scientists continue to learn, the better breast milk looks.