Staphylococcal skin disease in livestock

Area of Science:

• Veterinary Dermatology
• Microbiology
• Public Health

Background:

• Staphylococcal infections present diverse cutaneous manifestations across various livestock species, including cattle, goats, sheep, and pigs.
• These infections can range from mild udder dermatitis in cattle to head lesions in sheep and greasy pig disease in swine.
• Specific Staphylococcus species, such as S. aureus, S. chromogenes, S. hyicus, and S. sciuri, are frequently implicated, with meticillin-resistant S. aureus (MRSA) also identified.

Purpose of the Study:

• To review the clinical presentations of staphylococcal skin infections in different livestock species.
• To highlight the role of predisposing factors in the development and recurrence of these infections.
• To address the emerging concern of livestock-associated MRSA and its public health implications.

Main Methods:

• Literature review of cutaneous staphylococcal infections in livestock.
• Summary of clinical signs and causative agents in cattle, goats, sheep, and pigs.
• Inclusion of diagnostic approaches, including routine and molecular methods for staphylococcal characterization.

Main Results:

• Staphylococcal dermatitis in livestock exhibits species-specific patterns, often influenced by environmental or other disease-related predisposing factors.
• While topical and systemic treatments can be effective, managing underlying causes is crucial for preventing relapses.
• Livestock-associated MRSA strains are increasingly recognized, particularly in pigs and cattle, posing a significant public health concern despite rarely causing primary skin disease.

Conclusions:

• Effective management of staphylococcal skin disease in livestock requires addressing predisposing factors to prevent recurrence.
• The emergence of livestock-associated MRSA necessitates ongoing research into transmission dynamics between animals and humans.
• Understanding the varied clinical presentations and etiological agents is vital for accurate diagnosis and treatment in veterinary practice.