Summary
The inheritance of resistance to Japanese encephalitis virus (JEV) was investigated using inbred strains of mice to study genetic resistance against JEV infection. C57BL/6 mice immunized intraperitoneally (i.p.) with an infective dose of JEV were resistant to intracerebral (i.c.) challenge with JEV, whereas most C3H/He mice treated in the same manner died. C57BL/6 mice developed this resistance 2 weeks earlier than C3H/He after intraperitoneal (i.p.) immunization. Passive transfer of spleen cells from immunized C57BL/6 protected the recipient mice from i.c. challenge, while transfer from immunized C3H/He was less effective. Since immunized athymic nude mice were not resistant to i.c. challenge with JEV, T lymphocytes were considered to be necessary for protection. When F1, F2 and backcross mice derived from C57BL/6 and C3H/He were challenged i.c. with JEV after i.p. immunizations, the number of resistant and susceptible mice were consistent with Mendelian ratios. Thus it can be concluded that resistance to JEV in mice was controlled by a single, dominant autosomal gene which was not linked toa (non agouti)-locus (chromosome 2).
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Miura, K., Onodera, T., Nishida, A. et al. A single gene controls resistance to Japanese encephalitis virus in mice. Archives of Virology 112, 261–270 (1990). https://doi.org/10.1007/BF01323170
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DOI: https://doi.org/10.1007/BF01323170