Using the same primer sets in umbilical cord blood CD34+ cells (infection efficiency: 14.7%, based on GFP fluorescence), we have identified an HIR (-1882 to -2971) (18/270) in a similar region as the TPA-Mat-ecoR and Jurkat-ecoR cells (Figure 1F, Additional files 2 and 3). The gene discussed is CD34; the disease is infection.