Hi Jen, I don't think that the FeLV vaccine will have any effect due to her history. The vaccination will not help prevent the virus from kicking in if she's already carrying it. However, that being said, if she is an indoor cat only, I wouldn't waste my time or money vaccinating her. If she doesn't come into contact with other cats, she can't contract it. Many of us here do not vaccinate, especially considering some cancers are associated with vaccinating. And since she's had the antibodies, I'm not even sure she can contract it (again?). Unfortunately, there isn't enough research on FeLV yet to know all the answers.
:) Wendy __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com