Figure 1. Macroscopic and histologic images of horse infected with possible novel parapoxvirus, Finland, 2013. A) Proliferative and ulcerative skin lesions were seen multifocally on the muzzle, ventral abdomen, and lower limbs (pictured). B) The main histological changes in samples of the skin lesions were severe multifocal lymphohistiocytic dermatitis with marked ballooning degeneration of the stratum granulosum and eosinophilic intrasytoplasmic inclusion bodies in many keratinocytes (arrows). Scale bar indicates 50 μm.