Der all, during my doctorate, I experience the specific contaminants' effect on immune system of common and grey seals and I try very hard to obtain some commercial leukocyte cell lines from common and grey seals. ATCC offers no longer its leukocyte cell lines from harbor seals (product numbers : CRL-6528 and CRL - 6605). If you have information on these items (or similars) or have them in your laboratory please feel free to contact me so that we may discuss alternatives. Please contact me with any questions. Thank you in advance for your time. Cheers, Heloise Frouin Ph. D. candidate INRS-Institut Armand Frappier Michel Fournier's laboratory 245 boulevard Hymus Pointe-Claire (Qc) CANADA H9R 1G6 TEL : (514) 630-8852 FAX : (514) 630-8850 heloise.frouin@iaf.inrs.ca