FIGURE 1.

Levels of different leucocyte subsets during PPRV infection of goats. The concentrations of 5 different leucocyte subsets (CD8⁺ and CD4⁺ T cells, CD21⁺ B cells, WC1⁺ γ/δ T cells and MHCII⁺ antigen‐presenting cells) in whole blood were measured, as described in Materials and Methods, in groups of animals infected with one of three strains of PPRV: Iran/2011, Sudan/72 or Nigeria/76. The changes occurring in naive infected animals were compared with those in animals that had previously been vaccinated against wild‐type PPRV using attenuated PPRV vaccines. To allow for the wide variation in normal cell concentrations between animals, the concentrations were normalized between animals by setting to % of the pre‐infection concentration (% initial cell conc.)