Breast milk contains living bacteria that transfer to babies' guts, helping build healthy digestion and immune systems.

A lab employee at Persephone Biosciences pulled bacteria samples out of a tank in which they’re stored at minus 200 degrees Celsius (minus 328 F). This is infant bacteria, which Persephone CEO ...

Most conversations about breast milk tend to focus on topics like nutrients, antibodies and bonding time rather than bacteria. But it turns out that ...

New research shows that direct breastfeeding strengthens the transfer of beneficial microbes from mother’s milk to very-low-birth-weight infants, even in the face of antibiotic use, helping shape the ...