Pathogens such as lymphocytic choriomeningitis virus (LCMV) cause abnormalities in the nervous system of developing mice and humans. While humans are able to recover from infection and clear the virus, the mouse immune system tolerates the virus and lifelong infection ensues. In order to understand the factors driving LCMV evolution and evaluate its neuropathogenesis, a mouse model was needed. To establish congenital infection, newborn C57BL/6J mice were intra-cerebrally (i.c.) injected with 1 x 103 PFU LCMV Armstrong.
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