上了万能google,说简单那个测试可能假阳,要进一步测试。另外,似乎感染初期可能查不
出阳性,28天内再测一次比较保险:
Testing for FeLV
There are two types of blood tests available for detecting FeLV:
immunochromatic tests and the immunofluorescence assay (IFA). The
immunochromatic tests, such as the ELISA, detects the presence of FeLV
during the initial, or transient, stage of infection, whereas an IFA test
detects the virus during the second stage, after the bone marrow has become
infected (an ELISA can also detect the virus at this stage). Immunochromatic
tests can be performed in a few minutes at a veterinary clinic.
Since it is possible for an ELISA to register a false positive result, a cat
that tests positive should be retested in 8 to 12 weeks, using either an
IFA test alone or a second immunochromatic test followed by an IFA test. A
cat exposed to FeLV may test positive during the transient phase of the
infection and then test negative if the virus is overcome. It is likely that
some cats euthanized because of a positive test result were tested during
this phase and would have eventually overcome the infection. A cat that
tests positive using an IFA will likely remain positive for life. Note that
a cat in the initial stage of FeLV infection may actually test negative. To
avoid a false negative test result on an infected cat, test the cat at least
28 days after the cat's last possible exposure to the virus. Unfortunately,
there is no test available to detect a latent FeLV infection.