Figure 1.
Wt and lab-attenuated rabies virus infection in mice. Groups of C57BL/6 mice (n = 10) were intracerebally (i.c.) inoculated with 20 FFU DRV or B2c, and observed daily for 2 weeks. (A) The survival ratio was presented and analyzed by Log-rank (Mantel-Cox) test. (B) Groups of C57BL/6 mice (n = 5) were i.c. infected with 200 FFU DRV or 20 FFU B2c. At indicated time points p.i., N mRNA of DRV and B2c in the mouse brain was analyzed by qRT-PCR. (C) The change of blood–brain barrier permeability in the DRV-, B2c-, and mock-infected mouse brain was determined by measuring the Na-fluorescence uptake. (D) The inflammation in DRV-, B2c-, and mock-infected mouse brains was analyzed by immunohistochemistry using anti-CD45 antibody. The scale bars represent 20 µm. (E) The inflammation was quantified by counting CD45+ lymphocytes from at least three different randomly selected areas.