https://en.m.wikipedia.org/wiki/Cryptotope

Cryptotopes are becoming important for HIV vaccine research as a number of studies have shown that cryptic epitopes can be revealed or exposed when HIV gp120 binds to CD4.

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what they say vaccine research may reveal the actual problem.

almost like T Cells are hyjacked.

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Epitope, also known as antigenic determinant, is the part of an antigen that is recognized by the immune system, specifically by antibodies, B cells, or T cells. 

T cells are born from Hematopoietic stem cells, found in the bone marrow.

B cells mature in the bone marrow, which is at the core of most bones.

B cells develop from hematopoietic stem cells (HSCs) that originate from bone marrow.

High-sensitivity virus and mycoplasma screening test reveals high prevalence of parvovirus B19 infection in human synovial tissues and bone marrow.

The coding portion of Parvoviridae genome is flanked by telomeres at each end that form into hairpin loops that are important during replication.

Viral messenger RNA (mRNA) is then transcribed and translated, resulting in NS1 initiating replication.