In reference to the mom with multiple transfusions--if she received any of
that during the birth or before as the baby was still connected to her blood
supply, exposure would have happened already blood to blood.  That's a number
of different donors, so increases the odds. When babies are transfused by our
blood bank, the same unit  is used repeatedly for portions as needed to risk
exposure to numerous donors, even with twins, a single unit is split several
times and both babies receive from the one unit. If her platelets were a
pheresis unit, it is a single donor. But you still have a good deal of
different donors in all those units..I can imagine she's going in circles
with all the -what ifs-running through her mind.
                          Georgeanne Mattise, MT(ASCP),LLLL, mostly MOM