Hi
@undiagnosed.
Yes, I periodically measure IgG titres to HHV3, HHV4, (VCA), HHV5, HHV6. All titles are high. For example, the last titre to HHV4 (VCA) was 32.1 at the reference value 1.1 boundary, the titer to HHV6 was 0.924 at the reference value 0.5 boundary. IgM measurements are negative.
However, I agree with my attending physician that the control of DNA in the blood plasma is more important for choosing the tactics of treatment, so most often I do this analysis. It is he who gives start to the beginning of the next course of treatment with antiviral and maintenance drugs.
Here is the link you are requesting
https://www.uptodate.com/contents/idiopathic-cd4-lymphocytopenia/abstract/15. I do not know if the forum rules are allowed to give links, so if necessary I can drop you into the mail.
Here and to me my doctor says that 0.25% is not very small, one person out of 400, so do not worry.
Of course, different authors give different figures, there are other data.
In my case, IgG1 is also reduced to 2.5 at the reference interval 4.9 ... 11.4. In this case, I take intravenous octagam.
It would be interesting to explain your concern about the low values of IgG1 in detecting antibodies to HIV.
As for your project. It would be good to build and train a neural network that provides a treatment regimen and a prognosis based on a patient data bank. However, it is obvious that on this way there are many difficulties of legal, financial, technical nature.
In addition, such work requires considerable time to input and structure diverse data. This is a very large work, certainly designed for enthusiasts.
I, of course, are ready to participate in your project as far as possible, when it is ready for work. I monitor the dynamics of subpopulations of lymphocytes (B, T, NK) by 31 indicators (helpers, killers, natural killers, their activation, naive cells, regulatory cells, B1, B2, memory cells, DPT, DNT, etc.), and general blood test against the background of the treatment.
But still, I'm more concerned with the practical side of the matter.
Sincerely, ukrmen.