as well as a significant decrease for L. delbrueckii (2.5%
1.1% versus 0.01% 0.01% [P 0.045]) in infants receiving
OSF. Consequently, the Lactobacillus distribution of the OSF
group, at the end of the intervention study, mimics the distribution
of breast-fed infants with L. acidophilus, L. paracasei,
and L. casei as the predominant strains. In infants receiving SF
a significant increase was seen in L. casei from 5.5% 1.5% to
8.3% 2.0% (P 0.017) and in L. delbrueckii from 1.8%
0.7% to 6.9% 2.8% (P 0.049).