Figure 3: Electrophoresis of amplification products from genomic DNA of infected mice plasma (IMP) at different time points post infection. At 3, 6 and 12 days post infection 4 out of the tested 5 IMP samples at each of the 3 time points were PCR positive (A; lanes 5-8 & 10-13, B; 6-9) while, 1 sample at each of the 3 time points was PCR negative (A; lanes 9&14, B lane 5). At 9, 15, 18, 21, 24 and 30 days post infection all the 5 tested IMP samples at each of such time points were uniformly PCR positive (A; lanes 15-19, B; 10-14&15- 19, C; 5-9&10-14, D; 5¬-9). At 27 days post infection, 3 samples were PCR positive (C; lanes 15-17), while, two were negative (C; lanes 17&18). That were subjected for electrophoresis on 1.5% agarose gel containing ethidium bromide parallel to 100 bp DNA ladder (lane 1& 20), products from a negative control of PCR reaction (lane 2), and products from control of UIMP (3 &4), where 338 bp specific amplification products were visualized in all positive samples that were not evidenced in the negative control lane.