@Hip does it make any sense for you, trying Alpha-2b after failling Lambda?
Were you one of the people trying interferon lambda? It's not clear if lambda is as effective as interferon alpha or beta for enteroviruses, since lambda has not been tested for enterovirus ME/CFS.
Interferon alpha is expensive (something like $20,000 for a few month's course), it is hard for patients to tolerate (as it causes symptoms to worsen, and may trigger depression), and although major improvements often occur, patients tend to relapse back to baseline after 4 to 12 months. This is why Dr Chia now rarely uses interferon. If it were not for the relapse, interferon would be a viable treatment.
If Dr Chia does use interferon these days, I understand he uses interferon beta, but reserves this for severe hospitalised bedbound patients. He finds that giving a few weeks of interferon beta can get these bedbound patients doing short walks around the hospital.
The problem with interferon alpha and beta is that after a few courses, the body starts to make antibodies which disable it. So taking repeated courses of interferon will not work, because of these antibodies.
One way around the antibody problem might be to use
interferon suppositories, which unlike injections do not elicit anti-interferon antibodies. I speculate in
this post that it might be possible to take a course of injected interferon to get you into remission, and thereafter take regular interferon suppositories in order to maintain remission and prevent the relapse that normally occurs with interferon therapy.