Swine Pox Age affected: Piglets pre-weaning, weaners, (all ages). Causes: Swine pox virus. Effects: Red spots, brown or black scabs, conjunctivitis, stunting. Mode of transmission Transmission is usually from pig to pig directly, but rubbing or scratching on contaminated pen furniture is an important route of infection, especially if there are protrusions which can break … Continue reading Swine Pox