Chromobacterium haemolyticum Infection Subsequent to Experiencing a Traumatic Event in a Rice Field: A Case Report and Literature Review.

IF 1 Q4 INFECTIOUS DISEASES
Case Reports in Infectious Diseases Pub Date : 2025-05-15 eCollection Date: 2025-01-01 DOI:10.1155/crdi/6547509
Mikiro Kato, Hiroyuki Kobayashi, Takuro Uchida
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Abstract

The incidence of infections caused by Chromobacterium haemolyticum, phylogenetically related however distinct from Chromobacterium violaceum, has increased since its identification in 2008. Differences in their unique microbiological features have been highlighted, particularly regarding their phenotypic distinctions in the colony pigmentation and hemolysis. This is largely due to C. haemolyticum being misidentified as C. violaceum, using the current automated microbial identification systems. However, clinical aspects and outcomes of C. haemolyticum infections remain unclear as few clinically relevant cases have been reported and considered similar to C. violaceum infections. Consequently, we reported an extremely rare case of C. haemolyticum bacteremia, which was initially diagnosed as a C. violaceum infection, however was later confirmed to be a C. haemolyticum infection, using 16S ribosomal ribonucleic acid (rRNA) sequence analysis. Abscess formation was not observed, and the patient was treated with a short course of antibiotics. Ultimately, his condition resolved, without recurrence during the 1-year follow-up. Clinicians should be aware that if the isolated organism is originally identified as C. violaceum, however is phenotypically mismatched with colony nonpigmentation and beta-hemolysis; the organism may be C. haemolyticum. Mortality, abscess formation, and recurrence rates are lower than those of C. violaceum, and chronic broad-spectrum antibiotic suppression may not be required, potentially avoiding unnecessary antibiotic use and preventing multidrug resistance.

稻田创伤性事件后的溶血色杆菌感染:一例报告及文献回顾。
溶血色杆菌(Chromobacterium haemolyticum)在系统发育上与紫色杆菌(Chromobacterium violaceum)相关,但与紫色杆菌不同,自2008年被发现以来,溶血色杆菌引起的感染发生率有所增加。它们独特的微生物特征的差异已经被强调,特别是关于它们在菌落色素沉着和溶血方面的表型差异。这主要是由于目前使用的自动微生物鉴定系统将溶血C.被误认为是紫C.。然而,溶血C.感染的临床方面和结果尚不清楚,因为很少有临床相关病例报道,并被认为与紫C.感染相似。因此,我们报告了一例极其罕见的溶血c菌血症,该病例最初被诊断为紫c菌感染,但后来通过16S核糖体核糖核酸(rRNA)序列分析证实为溶血c菌感染。未观察到脓肿形成,患者接受了短疗程的抗生素治疗。最终,他的病情得到缓解,在1年的随访中没有复发。临床医生应该意识到,如果分离的生物体最初被确定为紫梭菌,然而与菌落非色素沉着和β -溶血表型不匹配;可能是溶血梭菌。死亡率、脓肿形成和复发率低于紫梭菌,可能不需要慢性广谱抗生素抑制,可能避免不必要的抗生素使用并防止多药耐药。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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审稿时长
13 weeks
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