An unusual case of Brucella melitensis -related wound infection.

BACKGROUND: Brucellosis is an anthropo-zoonotic infectious disease caused by various Brucella species. It is usually transmitted through contact with infected animals or consumption of contaminated animal products. Brucellosis most commonly affects the musculoskeletal and reticuloendothelial system with additional involvement observed in gastrointestinal system, urinary tract, reproductive system, central nervous system, and cardiovascular system. Skin involvement is extremely rare in brucellosis. Here, we report a rare case of Brucella melitensis infection developing in a back wound following a lumbar disc herniation surgery over 14 years ago.

CASE: A 34-year-old male patient, who had a herniated disc surgery 14 years ago, was admitted to the hospital with complaints of joint pain, sweating and discharge at the surgery site. Wound culture revealed the presence of Gram negative cocobacilli which was identified as Brucella melitensis . The subsequent diagnostic tests, including the Rose-Bengal and Brucella Capture test positivity at a titer of 1/320 confirmed the diagnosis. The patient received six weeks of doxycycline (200 mg/day, orally) and rifampin (600 mg/day orally) treatment, accompanied by wound care procedures. Daily cleaning, sterile dressing, and wound debridement were employed. Following treatment, the patient's condition improved, and wound discharge ceased. Continuous monitoring showed no signs of relapse, achieving complete remission.

CONCLUSION: Brucella spp . should be considered as a potential cause of wound infections developing after surgery or trauma in brucellosis-endemic areas. This report also emphasizes the importance of promptly determining the cause of infection before initiating antibiotic treatment.