(A and B) PBS- or DT-treated mice were infected i.p. with different doses of MCMV and viral titers in spleen (A) and liver (B) were enumerated on day 3 p.i. by plaque assay.
(C) PBS- or DT-treated mice were infected i.p. with MCMV or Δm157 MCMV and salivary gland (SG) viral titers were calculated on day 8 p.i. p value, unpaired, two-tailed Student's t test. Data shown are from two experiments.