orf. human`s hand with the affected area of ​​the skin

affected area biology blister caused close closeup cold contagiosum contagious dermatitis disease ecthyma exanthemous flu germ goats hand has health human humans icon illness illustration infection infectious medicine microbe microorganism orf parapox parasite pathogen pustular science sheep sick sign skin symbol that thistle turned unhealthiness unwell vaccine vector virion virions virus