id author title date pages extension mime words sentences flesch summary cache txt cord-009504-sn00p8iw Taguchi, Fumihiro Pathogenesis of Mouse Hepatitis Virus Infection: The Role of Nasal Epithelial Cells as a Primary Target of Low‐Virulence Virus, MHV‐S 2013-11-14 .txt text/plain 3453 170 54 The pathogenesis of mouse hepatitis virus (MHV‐S) infection in suckling and weanling mice was comparatively studied after intranasal inoculation. In the posterior part of the brain and spinal cord, virus was detected on days 3 to 4 postinoculation when viral growth was clearly demonstrable in the liver, spleen and intestines. In weanling mice, however, neither infectious virus nor viral antigen was detected in the liver or other visceral organs, while serum neutralizing antibody became detectable on day 5 postinoculation, increasing in titer thereafter. 2A and 2B , significant viral growth was observed in the brain, spinal cord ( Fig. 2A) and head without brain (Fig. 2B) , whereas no virus was demonstrated in the spleen or liver of the infected mice with a few exceptions (not included in the figures). In 4-week-old mice, however, no or little infectious virus was detected in the liver or other visceral organs, although high titered virus demonstrable in the brain was probably disseminated from the nasal mucosa as was observed in suckling mice. ./cache/cord-009504-sn00p8iw.txt ./txt/cord-009504-sn00p8iw.txt