Breastfeeding: Baby’s First Immunisation

It’s Immunisation Week, and as lactation consultants, we know that one of the most powerful immunisations a baby can receive comes straight from the breast! Breastfeeding is a baby’s first line of defence against infections and diseases, providing both passive and active immunity right from birth. Let’s unpack this incredible natural protection.

A Shield of Antibodies

Breast milk is packed with immune-boosting components, the most important being Immunoglobulin A (IgA)—more specifically, secretory IgA (SIgA). This special antibody coats a baby’s gut and respiratory tract, preventing harmful germs from entering the bloodstream. Colostrum, that first golden milk, is especially rich in SIgA, giving newborns an early boost of protection.

More Than Just IgA

Breast milk also contains other immunoglobulins like IgG and IgM, which further strengthen a baby’s defence system. But it doesn’t stop there! The body has specific immune tissues known as MALT, BALT and GALT:

• MALT (Mucosa-Associated Lymphoid Tissue) – Found throughout the body’s mucosal surfaces, including the gut, lungs, and mouth.

• BALT (Bronchus-Associated Lymphoid Tissue) – Protects the respiratory system, reducing risks of lung infections.

• GALT (Gut-Associated Lymphoid Tissue) – Plays a major role in digestive health, supporting good bacteria and fighting off pathogens.

All of these work together with breast milk to keep the baby's immune system in top shape!

Passive and Active Immunisation

Breastfeeding offers both passive and active immunity:

Passive immunity: The mother passes ready-made antibodies to her baby via breast milk, giving immediate protection.

Active immunity: Breast milk promotes the development of a baby's own immune system, helping them build long-term defences against illnesses.

Breastfeeding and Vaccinations Work Hand in Hand

While breastfeeding provides excellent immune support, vaccines remain crucial. They help babies develop stronger, long-lasting immunity against specific diseases that breast milk alone can’t fully protect against. Breastfeeding can even help babies tolerate vaccines better, reducing pain and potential side effects.

The Power of Mother’s Milk

Breastfeeding isn’t just about nutrition—it’s a natural immunisation programme designed by nature itself! By encouraging and supporting breastfeeding, we are giving babies the best possible start in life, boosting their immunity and overall health.

So, as we celebrate Immunisation Week, let’s remember: Beastfeeding/breastmilk is a baby's first immunisation!

Let’s keep empowering mothers to give their babies this precious gift of health.