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ECTV titers in resistant and susceptible mice. Groups of C57BL/6, BALB/c, and A/J mice infected with ECTV were killed on the days indicated. Virus titers in PLN (A), spleen (B), and liver (C) of individual animals were determined. BALB/c and A/J mice did not survive beyond day 7. Virus titers are expressed as mean log10 PFU per g of tissue ± SEM from five mice per group. The limit of detection is 2 log10 PFU (indicated by the dotted line).
