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Comparison of recombinant PICV strains in viral replication in vivo. (A) Viremia levels of infected animals at day 9 and day 15 post-infection. (B) Viral titers in internal organs (liver, lung, spleen and lymph nodes) at terminal points or at the end of infection (18 dpi). Statistical analysis was conducted using the Student’s t-test. p < 0.05, p < 0.01 indicated by **, P < 0.001 by ***, and P < 0.0001 by ****.
