"when
breastfeeding is combined with ABM, the ABM negates the protective
properties of breast milk".

I read recently that when you "combine" human milk and ABM in the same
bottle the ABM does take away part of the immunological element of the
human milk. It was suggested to give the ABM without mixing it with
human milk. A working mother would probably do just that. ( I'm sorry I
can't recall where I read it)

I know several working mothers who are still nursing (as you all do) and
their children do benefit a lot from the ungoing nursing relationship;
both from the immunological elements and the closeness it provides.

Christine Gauthier LLL