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Invasion of MAP wild type K-10 and mutant strains in bovine macrophages. Procedures followed are described in Lamont and Sreevatsan (2010). MAP uptake at the end of the invasion incubation period (percent invasion, 2 h after infection). Results represent means (n = 3) ± standard error of the mean. Statistical significance for pairwise determinations displayed by a line with tick marks is denoted with asterisks: *P-value < 0.05, **P-value < 0.01 and ***P-value < 0.001.
