The expression of CCL2 and CCL5 in EHV-1 infected nasal mucosa. The expression of CCL2 (A) and CCL5 (B) in mock inoculated, EHV-1 neurological strain 03P37 and abortigenic strain 97P70 inoculated (at ROIWI and ROIWOI) as well as their UV inactivated viruses (UV-03P37 and UV-97P70) inoculated nasal mucosa at 0, 24, 48 and 72 hpi (two-way ANOVA; **P < 0.01; ***P < 0.001). EHV-1 infected cells (red); CCL2 or CCL5 (green). The white line drawn on the image represents the BM. Scale bar: 50 µm.