• M Hönlinger, D Fuchs, A Hausen, G Reibnegger, D Schönitzer, E R Werner, H Reissigl, M P Dierich, and H Wachter.
• Zentralinstitut für Bluttransfusion, Universität Innsbruck.
• Dtsch. Med. Wochenschr. 1989 Feb 3; 114 (5): 172176172-6.

AbstractSince October 1986, all volunteer blood donors in the Tirol of Austria have been tested for neopterin. Serum neopterin levels were raised in 1242 donors (1.6%), 650 of whom (52.3%) consented to another test four weeks after the donation. In retrospect, 148 of these donors (22.8%) had an illness or abnormal symptoms at the time of donation or within a few days of it: according to the "guidelines for blood group testing and blood transfusion" of the Federal German Chamber of Doctors (Deutsche Bundesärztekammer) 25 of these (16.9%) should be permanently excluded as blood donors. The other 123 donors would have been temporarily excluded, according to the guidelines, if their illness had been known at the time of donation. Since the beginning of 1988, all donated blood with increased serum neopterin levels also had an IgM test for cytomegalovirus (CMV): nine of 243 samples tested (3.7%) indicated an acute CMV infection. The neopterin assay thus detects a variety of potentially harmful diseases or conditions which would not be revealed by the usually employed battery of routine tests.

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