Parasite DNA Survey of Fresh Whole Mushrooms in Canada

483 samples of fresh mushrooms were analyzed for enteric parasite DNA by the Canadian Food Inspection Agency from April 2016 to March 2017. All samples tested negative for Cyclospora, Cryptosporidium, Toxoplasma, and Giardia. The final report was published as a targeted survey.

Use Cases

• Establish a baseline prevalence rate of zero for specific parasite DNA in fresh mushrooms using the 483 sample results.
• Analyze temporal trends in food safety by comparing this survey's negative findings with data from other time periods or commodities.
• Support risk assessment models for parasite contamination by incorporating the specific tested pathogens (Cyclospora, Cryptosporidium, Toxoplasma, Giardia).

Strengths

• 483 samples provide a substantial survey size for a targeted commodity.
• Clear temporal coverage from April 1, 2016 to March 31, 2017.
• Data originates from the authoritative Canadian Food Inspection Agency.

Limitations

• Dataset contains only negative results, limiting analysis of contamination patterns or risk factors.
• Sample size of 483 may not be representative of all mushroom production batches or regions.
• Data is from a single one-year period and may not reflect current conditions.

Provenance

Source

Canadian Food Inspection Agency

Collection Method

Targeted survey involving laboratory analysis of samples for specific parasite DNA.

Time Range

April 1, 2016 to March 31, 2017

Freshness

Data covers 2016-2017; metadata was last updated in April 2026.

Geography

Canada (implied by the conducting agency)