Ten House Cats, is this the link/info that you meant when you said that 70% of cats are false positives? Anita http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=2551866&dopt=Abstract
1: J Am Vet Med Assoc. 1989 Oct 1;195(7):928-30. Links Comment in: J Am Vet Med Assoc. 1989 Dec 15;195(12):1680. J Am Vet Med Assoc. 1990 Jan 1;196(1):10-1. Interpreting feline leukemia test results. ยท Romatowski J. Routine prevaccinal screening for FeLV has inherent statistical limitations owing to the magnification of false-positive test errors by the low prevalence of FeLV viremia in the general cat population. Positive ELISA test results obtained in a screening program should be interpreted with caution, because a high proportion--approximately 72%--of such are likely to be false-positive results. On the other hand, routine screening is an excellent method for ruling out FeLV viremia, because a false-negative result is likely to be obtained in only 1/1,000 tests. PMID: 2551866 [PubMed - indexed for MEDLINE] _________________________________________________________________ Explore the seven wonders of the world http://search.msn.com/results.aspx?q=7+wonders+world&mkt=en-US&form=QBRE
