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. 2021 Aug 27;13(9):1703. doi: 10.3390/v13091703

Figure 2.

Figure 2

MHV-1 inoculated mice displayed signs of sickness. (A) About 40% of mice showed signs of sickness on day 2 post-MHV-1 inoculation, and the number of mice exhibiting clinical signs increased gradually (up to 75%). The remaining 25% of mice did not show any clinical signs (observed for up to 91 days). (B) MHV-1 inoculated mice showed clinical signs (from stages I to VI) from days 2 to 12 and beyond. Mild to moderate clinical signs (stages I–III) were observed from days 2 to 4. The MHV-1 infected mice showed severe sickness (stages IV–VI) from day 6 onward. Further, 60% of animals died from days 7 to 12 (n = 16).