2166. Preparedness for <i>Candida auris</i> in Canadian Nosocomial Infection Surveillance Program (CNISP) Hospitals, 2018
Bibliographic record
Abstract
C. auris is a rapidly emerging pathogen which is potentially multidrug resistant, has caused large hospital outbreaks, and is difficult to identify in the routine microbiology laboratory. We surveyed CNISP sites to evaluate infection prevention and control (IPAC) and microbiology laboratory (MICRO) preparedness. An electronic survey with five IPAC and 12 MICRO questions was sent out to IPAC and MICRO leads for all CNISP sites in January 2018. Data were entered and analyzed in Excel. We received 32 IPAC surveys representing 58/66 (88%) CNISP hospitals, and 27 MICRO surveys representing 27/32 (84%) CNISP labs. Four of 58 (7%) hospitals have a written policy for C. auris screening of patients; and 22 (38%) recommend screening; most commonly: roommates of any patient colonized/infected with any C. auris (n = 7), room/wardmates (RWM) of patients colonized/infected with any C. auris (n = 7) or RWM of patients with MDR C. auris (n = 3). Without resource limitations, 50 (86%) hospitals would screen RWM of C. auris patients and 34 (59%) would screen patients previously hospitalized in the Indian subcontinent. Overall, 13/27 (48%) labs identify all clinically significant Candida spp. to the species level and 13 identify sterile site (SS) isolates. Twenty-two (81%) labs use MALDI-TOF for identification: 10 Bruker Biotyper and 12 VitekMS. 26 (96%) labs refer non-identified species and commonly misidentified yeast from SS for definitive identification. Twenty-three (85%) labs perform antifungal susceptibility testing for all Candida from blood and CSF. Twenty-two (81%) labs are confident that their current laboratory protocol would identify C. auris if the isolate is from an SS, 17 (63%) if identified as being resistant to at least 1 antifungal and 20 (74%) if the isolate is from a non-SS culture and is identified to the species level. Four (15%) labs have a protocol for C. auriscolonization detection. Four labs have identified six C. auris isolates: two reported retrospective identification of three fluconazole susceptible C. auris; and two reported one resistant and two MDR isolates identified prospectively in 2017/2018. MDR C. auris have been identified in Canada. Gaps remain in ensuring reliable identification of C. auris, particularly from non-SS, and most IPAC CNISP teams and MICRO do not yet have protocols for identification of C. auriscolonization. All authors: No reported disclosures.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.007 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".