Fig. 3.
EcoHIV-infected mice resist superinfection in the brain. 129×1 mice were infected by IC injection of EcoHIV (acute) or were infected by IP injection of EcoHIV for six weeks prior to superinfection by IC injection (superinfected). Euthanasia was conducted one week after IC infection and brains were collected for measurement of virus burden by QPCR a 2-LTR circular HIV DNA, b spliced HIV RNA; * p<0.05