help-need noninvasive immune assay for endangered primates

[Ingo Schlupp]

We work with endangered primates and we were hoping to be able to assay
for immunocompetence differences among individuals - however, we need to
be as noninvasive as possible.  We currently use urine and fecal samples
for endocrinological assay with great success - does any one have any
suggestions, or know if we can deduce immunocompetence from such
samples?  Please help us and contact me at:

Rebecca L. Thompson
beckit at mail.utexas.edu

Thanks,
Becki