Fig. 3
From: Long-term follow-up of Mycoplasma hyopneumoniae-specific immunity in vaccinated pigs
Persistence of circulating proliferating CD3+ T cells in pigs. A, B Frequency (%) of proliferating CD3+ T cells on farm A and B, respectively. The horizontal grey line indicates the median C, D Frequency (%) of the proliferating T cell subsets in pigs at the different sampling moments. On each farm pigs were vaccinated against M. hyopneumoniae at 16 days of age. ***, P ≤ 0.001 between the sampling moments. Red dot: M. hyopneumoniae PCR positive animal.