Hello, I need a transfer factor to specifically target EBV. I saw that TF 540 was idea for this, but it is 'temporarily unavailable' (has been for sometime I believe?) ..... does anyone know what has happened to it, when it is likely to be available, or if there's a similar product I can obtain that targets EBV. If there is, what's it called please and where can I get it from? Any other EBV tips anyone has I'll be truly gratefuil for too! I've been tested also for CMV and HHP-V6 and those were both clear. EBV very high though, and my main problem I feel. Many thanks in advance!