I copied only a small part because this forum accepts only 20 KB - see the whole thing, though! Very good information:
http://www.natural-cat-health-remedies.com/feline-leukemia-test.html Feline Leukemia Test - Points to Remember . No test is 100% accurate. . The ELISA test should be repeated in 8 to 12 weeks to see if the virus has been eliminated. . The IFA test should also be repeated in 8 to 12 weeks - if the cat was in an early stage of infection, the IFA initially may not have been positive but may become so after 12 weeks. . A cat with an initial negative test result but with the potential of having been exposed to FeLV should be retested after a minimum of 30 days. . The ELISA and IFA tests cannot diagnose cats with latent infection since the virus is absent in both serum and white cells. The only way to diagnose cats with latent infection is to remove a sample of the cat's bone marrow and test for presence of the virus. _______________________________________________ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org