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1.
J Pediatric Infect Dis Soc ; 5(3): 329-32, 2016 Sep.
Article in English | MEDLINE | ID: mdl-26407257

ABSTRACT

We analyzed in parallel 27 pediatric Clostridium difficile isolates by repetitive sequence-based polymerase chain reaction (RepPCR), pulsed-field gel electrophoresis (PFGE), and whole-genome next-generation sequencing. Next-generation sequencing distinguished 3 groups of isolates that were indistinguishable by RepPCR and 1 isolate that clustered in the same PFGE group as other isolates.


Subject(s)
Bacterial Typing Techniques , Clostridioides difficile/classification , Molecular Epidemiology , Whole Genome Sequencing , Electrophoresis, Gel, Pulsed-Field , Humans , Polymerase Chain Reaction
2.
Clin Infect Dis ; 59(3): 401-3, 2014 Aug 01.
Article in English | MEDLINE | ID: mdl-24785235

ABSTRACT

Surveillance testing for Clostridium difficile among pediatric oncology patients identified stool colonization in 29% of patients without gastrointestinal symptoms and in 55% of patients with prior C. difficile infection (CDI). A high prevalence of C. difficile colonization and diarrhea complicates the diagnosis of CDI in this population.


Subject(s)
Clostridioides difficile/isolation & purification , Clostridium Infections/epidemiology , Neoplasms/complications , Adolescent , Bacterial Shedding , Child , Child, Preschool , Clostridium Infections/complications , Clostridium Infections/diagnosis , Clostridium Infections/microbiology , Diarrhea , Feces/microbiology , Humans , Infant , Pediatrics , Prevalence , Young Adult
3.
Infect Control Hosp Epidemiol ; 33(7): 666-71, 2012 Jul.
Article in English | MEDLINE | ID: mdl-22669227

ABSTRACT

BACKGROUND: Bacillus species have caused healthcare-associated outbreaks of invasive disease as well as pseudo-outbreaks. We report an outbreak investigation of blood cultures positive for Bacillus cereus associated with alcohol prep pads (APPs) contaminated with B. cereus and Bacillus species resulting in a rapid internal product recall and subsequent international product recall. DESIGN: Epidemiologic and microbiologic outbreak investigation. SETTING: A 300-bed tertiary care children's hospital in Aurora, Colorado. PATIENTS: Patients with blood or cerebrospinal fluid cultures positive for B. cereus. METHODS: Three patients with blood cultures positive for B. cereus were identified in late 2010. Breaches in procedural and surgical techniques, common interventions, and products were explored. The following 3 common products were cultured: sterile saline syringes, chlorhexidine/alcohol skin preparation solution, and APPs. Repetitive sequence-based polymerase chain reaction (Rep-PCR) was used to compare isolates obtained from patients and from APPs and was confirmed by independent pulsed-field gel electrophoresis. RESULTS: There appeared to be a significant increase in blood cultures positive for B. cereus during 2009-2010. B. cereus and other Bacillus species were cultured from the internal contents of 63.3% of APPs not labeled as sterile, and 8 of the 10 positive lots were manufactured after 2007. None of the isolates obtained from the patients matched strains isolated from the APPs. However, some lots of APPs had strains that were indistinguishable from one another. CONCLUSIONS: APPs that were not labeled as sterile were contaminated with Bacillus species. The product was immediately recalled internally and replaced with APPs from another manufacturer that were labeled as sterile. On January 3, 2011, the manufacturer voluntarily recalled its APPs. Healthcare facilities, healthcare providers, and users of APPs should avoid the use of APPs not specifically labeled as sterile.


Subject(s)
Bacillus cereus/isolation & purification , Bacteremia/etiology , Cross Infection/etiology , Equipment Contamination , Ethanol/administration & dosage , Gram-Positive Bacterial Infections/etiology , Bacteremia/epidemiology , Colorado/epidemiology , Cross Infection/blood , Cross Infection/cerebrospinal fluid , Disease Outbreaks , Gram-Positive Bacterial Infections/blood , Gram-Positive Bacterial Infections/cerebrospinal fluid , Hospitals, Pediatric , Humans , Molecular Typing , Product Recalls and Withdrawals
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