I've been trying to get an answer to this question for months and months. I've tried via email, twitter, and here with no luck.
There is very solid evidence, over two dozen studies, linking this disease to enteroviruses. The epidemiology fits. Several studies, replicated in recent years by Dr. Chia, have shown consistently elevated neutralizing enterovirus antibodies in ME patients. Knowing this evidence exists, one would think it would be one of the first things OMF would try to replicate in their study, but they haven't. In fact, they have opted to perform serology testing for literally everything
except enteroviruses. I can see no reasonable reason why this decision was made. This is a huge omission. Yes, one can argue that serology is largely meaningless, but OMF cannot argue they believe this while also spending considerable money performing serology for everything else but enteroviruses.
They have claimed that they will perform digital PCR assays on blood looking for enterovirus, but the last I heard of this was that they needed to develop the primers to do so. It's unclear why they believe existing commercially available, off the shelf validated PCR primers are not adequate for this. It's unclear how they are validating these primers. It's unclear if these new primers will detect the mutated enterovirus strains found in ME patients (
ref). It's unclear how they are collecting, transporting, storing, and processing the blood samples for this. It's unclear whether they are using RNA preservatives at time of blood draw to preserve the integrity of viral RNA in the samples. It's unclear what blood compartments are being tested.
In the most recently posted video, Davis appears to refute the idea that there could be an active tissue infection, with very limited spillover into the blood, so he appears to be willing to deny the numerous studies that exist showing abnormal, non-cytolytic enterovirus infection in the muscle, GI tract, and brains of ME patients. I assume this means that he has no interest in replicating these numerous studies with tissue testing.
If you can get any answers, please do share them.