• M021-3, M74-4 Aeromonas caviae 91% of category A laboratories received acceptable grades
•  M22-3 (wound) Aeromonas hydrophila
  

• M031-3, M71-3 Campylobacter jejuni
• M061-3 Campylobacter coli

• M011-4 (Candida albicans) Stool sample from an AIDS patient suffering from diarrhea and esophagitis. Sample contained pure Candida albicans. A report noting Candida albicans with the comment "May be clinically significant in an immunocompromised patient" and  'negative for Salmonella, Shigella, Campylobacter, E. coli O157:H7, Aeromonas, Plesiomonas, and Yersinia' was the expected result. The enteric pathogens that are ruled out should be listed.
  
  
• M032-2 , M22-4, M081-2 Escherichia coli O157:H7
  
  
• M093-3, M014-3, M84-3 Pleisomonas shigelloides 94% of category A laboratories and 90% of category B laboratories received acceptable grades

• M084-3 Salmonella enteritidis and Shigella flexneri
• M044-3 Salmonella braenderup (group C1)[or also acceptable - Salmonella, not S. typhi]
• Please note: In future CMPT samples of this type, failure to indicate Notification of Public Health will result in a downgrading of score.
• M062-4 (blood), M054-3 (urine), M012-5 (blood)

• CMPT Connections 3, 2 1999 - Collection and Transportation of Stool for Culture 
• VRE Screen - M063-4 Rectal or perianal swabs may not be sufficient to capture enough cells of the organism if only present in low concentrations. Culture of stool may be required to get a more representative sample.

• M101-3 Shigella sonnei
• M084-3 Shigella flexneri and Salmonella enteritidis
• M052-2 (Shigella sonnei) Please see note below re
• M92-2 (Shigella sonnei)

• M042-3, M83-5 Vibrio parahaemolyticus As reported in the November 1998 M83-5 the routine use of TCBS agar is not recommended as cases of Vibrio gastroenteritis are generally sporadic in nature and this practice is not cost-effective. Relevant history such as seafood consumption or marine exposure to prompt a search for Vibrio was not included with this challenge.
• M023-3 Vibrio fluvialis
• M073-2 - wound - Vibrio vulnificus
• M092-2 Vibrio cholerae non 01 non 0139

• M063-2 , M012-3, M73-3 Yersinia enterocolitica 98% of category A laboratories and 96% of category B laboratories received excellent grades.

A pure growth (in this scenario [M063-2] 4+) of a non-lactose fermenting colony on MacConkey agar from a stool sample warrants investigation.