First of all, the PKZIP trojan horse is very real.  We had a bout of it
here when it came in attached to a downloaded IBM file.  It is not a
hoax.

As for the evidence regarding the immunological benefits of
nucleotide-containing infant formulas, I saw the data presented by Ross
Labs at the recent Experimental Biology conference, and I have to say
the evidence is pretty weak.  The nucleotide-containing formula boosted
antibody responses to all the vaccines they tested, but they didn't know
what isotype the antibodies were (a sign of effectiveness).  It also
concerns me when some dietary factor shifts the immune system into high
gear so non-specifically.  What about autoantibodies?  What about
long-term immune system development?  As we can tell from formula-based
infant weight gain curves and charts, "more is not necessarily better".

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J. Paul Zimmer
Developmental and Clinical Immunology
University of Alabama at Birmingham