Abstract：
The skin covers the external surface of animals, and it is constantly exposed to and inhabited by different microorganisms, including bacteria. Alterations in the skin barrier allow commensal and/or pathogenic bacteria to proliferate and penetrate deep into the lower layers of the skin. Being the first barrier to the external environment, the skin is prone to injuries, allowing the penetration of microorganisms that may lead to severe deep infections. Companion animals, especially dogs, are prone to bacterial infections, often secondary to allergic dermatitis. When environmental conditions are unfavorable, horses, cattle, sheep, and goats can develop superficial infections, such as those caused by Dermatophilus congolensis. Deep inflammation is commonly caused by Mycobacterium spp., which results in granulomatous to pyogranulomatous dermatitis and panniculitis. Likewise, bacteria such as Nocardia spp. and Actinomyces spp. can cause deep pyogranulomatous inflammation. Bacteria that lead to deep necrotizing lesions (eg, necrotizing fasciitis/flesh-eating bacteria) can be severe and even result in death. This review includes an overview of the most common cutaneous bacterial infections of domestic animals, highlighting the main features and histologic morphology of the bacteria, cutaneous structures involved, and the type of inflammatory infiltrates.
摘要：
皮肤覆盖动物的外表面，它经常暴露在不同的微生物中，包括细菌。皮肤屏障的改变允许共生和/或致病细菌增殖并深入皮肤的下层。作为外部环境的第一道屏障，皮肤容易受伤，允许可能导致严重深部感染的微生物渗透。伴侣动物,尤其是狗,容易发生细菌感染,常继发于过敏性皮炎。当环境条件不利时，马,牛,绵羊,山羊会出现表面感染，例如由蒙古嗜血杆菌引起的。深部炎症通常由分枝杆菌引起。,导致肉芽肿性到脓性肉芽肿性皮炎和脂膜炎。同样，细菌，如诺卡氏菌属。和放线菌属。会引起深部脓性肉芽肿性炎症。导致深部坏死性病变的细菌（例如，坏死性筋膜炎/食肉细菌）可能很严重，甚至导致死亡。这篇综述概述了家畜最常见的皮肤细菌感染，突出细菌的主要特征和组织学形态，涉及皮肤结构，和炎症浸润的类型。
