Here is another reason to be careful with infant formulas. Traces of a bacterium E. sakazakii, which can cause meningitis or severe gut infections in newborns, was found in each of four infant formula milk factories tested. The samples from the factories appear to confirm contamination of formula milk as a potential source of this bacterium, which causes a disease that has a very high mortality rate among young infants. Breastfeeding is the best option for feeding your newborn. If, however, this is not an option, you can use raw milk to produce a terrific infant formula, but remember that breast milk is always best.
BBC News January 2, 2004