EP1904

Stool for Enteric Pathogens detection:

EP1904-1: Vibrio species

EP1904-2: Yersinia species

EP1904-3: Salmonella species

EP1904-4: Campylobacter species

– Shipped April 23, 2019

Participants’ results

  Samples
ReportedEP1804-1EP1804-2EP1804-3EP1804-4
Expected: Vibrio speciesExpected: Yersinia speciesExpected: Salmonella speciesExpected:
Campylobacter
species
Vibrio species2 (Ungraded)
Yersinia species4 (Ungraded)
Salmonella species6 (Acceptable)
Campylobacter species6 (Acceptable)
Negative*4 (Ungraded)2 (Ungraded)
Total6666

*Laboratories reported negative for pathogens listed but indicated their methods would not detect certain organisms.

Please note:

This round of testing may have been negatively impacted on the decision by CMPT to include an isolate of Vibrio vulnificus and an isolate of Yersinia enterocolitica in the panel of challenges. While these enteric pathogens may not be indigenous in all regions, they are recovered in medical laboratories across Canada and can be detected by both culture and molecular methods. Because we may have inadvertently created confusion with samples 1 and 2, they have been ungraded.

With all subsequent challenges, laboratories will be advised of all possible enteric pathogens to be placed in consideration, including the possibility of no pathogen (true negative).

CMPT QA/QC

All samples were produced by CMPT.  Samples were randomly selected for QC/QA.

All samples were produced by CMPT.  Samples were randomly selected for QC/QA. Statistical analysis is not applicable.

Sample EP1904-1 consisted of 3+ Vibrio vulnificus, which was homogenous and stable for 33 days.

Sample EP1904-2 consisted of 3+ Yersinia enterocolitica, which was homogeneous and stable for 57 days

Sample EP1904-3 consisted of 3+ Salmonella enterica, which was homogeneous and stable for 57 days.

Sample EP1904-4 consisted of 2+ Campylobacter jejuni, which was homogeneous and stable for 53 days.

Statistical analysis is not applicable.

Posted in critiques, Enteric Panel Results, EPNews