First genotypic characterization of toxigenic Clostridioides difficile in Lithuanian hospitals reveals the prevalence of the hypervirulent ribotype 027/ST1

A Case of Clostridioides difficile Infection of a Pregnant Woman Treated with Colectomy

Clostridioides difficile-associated pseudomembranous colitis (PMC) is a life-threatening inflammatory bowel disease. Here, we aimed to present a 40-year-old woman at 25 weeks of gestation whose pregnancy was terminated earlier than expected. Unfortunately, despite fidaxomicin and oral vancomycin, the patient's diarrhea did not improve, and she had to undergo a subtotal colectomy. C. difficile infections developing in pregnant women can be catastrophic for both baby and maternal health. Also, antibiotic stewardship is crucial in the prevention of PMC. Therefore, unnecessary and prolonged use of antibiotics should be avoided.

Microbiological features, epidemiology, and clinical presentation of Clostridioidesdifficile strains from MLST Clade 2: A narrative review

Clostridioides difficile is an emerging One Health pathogen and a common etiologic agent of diarrhea, both in healthcare settings and the community. This bacterial species is highly diverse, and its global population has been classified in eight clades by multilocus sequence typing (MLST). The C. difficile MLST Clade 2 includes the NAP1/RT027/ST01 strain, which is highly recognized due to its epidemicity and association with severe disease presentation and mortality. By contrast, the remaining 83 sequence types (STs) that compose this clade have received much less attention. In response to this shortcoming, we reviewed articles published in English between 1999 and 2020 and collected information for 27 Clade 2 STs, with an emphasis on STs 01, 67, 41 and 188/231/365. Our analysis provides evidence of large phenotypic differences that preclude support of the rather widespread notion that ST01 and Clade 2 strains are "hypervirulent". Moreover, it revealed a profound lack of (meta)data for nearly 70% of the Clade 2 STs that have been identified in surveillance efforts. Targeted studies aiming to relate wet-lab and bioinformatics results to patient and clinical parameters should be performed to gain a more in-depth insight into the biology of this intriguing group of C. difficile isolates.