Savini Vincenzo, Marrollo Roberta, D'Antonio Marianna, D'Amario Claudio, Fazii Paolo, D'Antonio Domenico
Microbiology and Virology, Spirito Santo Hospital, Pescara (PE), Italy.
Int J Clin Exp Pathol. 2013 Jul 15;6(8):1693-5. Print 2013.
Streptococcus agalactiae (group B Streptococcus, GBS) vaginal pathogenicity is not uniformly acknowledged throughout the literature; accordingly, in women, genital itching and burning, along with leukorrhea are commonly and almost exclusively referred to bacterial vaginosis, candidiasis and trichomoniasis. Conversely, GBS virulence for vagina was recognized in the past, as the organism has been observed to potentially cause local inflammation and discharge, as well as lactobacilli rarefaction. We depict here a case where a nonhemolytic (γ-hemolytic) GBS strain was found to be the etiologic agent of vaginal infection. Such uncommon S. agalactiae phenotypes are hard to be recognized and may be therefore responsible for misdiagnosing and underestimation of GBS vaginitis prevalence; here, we had the support of the Liofilchem(®) Chromatic StreptoB medium, that successfully detected such an atypical variant.
无乳链球菌（B族链球菌，GBS）的阴道致病性在整个文献中并未得到一致认可；因此，在女性中，生殖器瘙痒、灼痛以及白带增多通常几乎都仅被认为是细菌性阴道病、念珠菌病和滴虫病。相反，过去人们就已认识到GBS对阴道具有致病性，因为已观察到该菌可能会引起局部炎症和分泌物增多，以及乳酸杆菌减少。我们在此描述一例非溶血性（γ-溶血性）GBS菌株被发现是阴道感染病原体的病例。这种不常见的无乳链球菌表型很难被识别，因此可能导致对GBS阴道炎患病率的误诊和低估；在此，我们借助Liofilchem® 彩色链球菌培养基成功检测到了这种非典型变体。
