Listeria Survey in Flavoured Milk Samples 2017-2020

1495 samples of flavoured milk were analyzed for Listeria monocytogenes and Aerobic Colony Count from April 1, 2017 to March 31, 2020. The Canadian Food Inspection Agency conducted this targeted survey, finding no Listeria but detecting Aerobic Colony Counts in 33 samples. The findings led to follow-up activities including a product recall.

Use Cases

• Analyze the relationship between sample collection date and the detection of Aerobic Colony Counts.
• Assess the prevalence rate of Aerobic Colony Counts (33 out of 1495 samples) for microbial quality benchmarking.
• Model the probability of contamination absence for Listeria monocytogenes across all tested samples.
• Investigate the temporal patterns of microbial indicator findings over the three-year survey period.

Strengths

• 1495 analyzed samples provide a substantial sample size for a targeted survey.
• Clear temporal coverage spanning three fiscal years from 2017 to 2020.
• Data includes a specific microbial quality indicator (Aerobic Colony Count) alongside pathogen testing.

Limitations

• No positive findings for the primary target pathogen (Listeria monocytogenes), limiting analysis of contamination factors.
• Unknown sample metadata (e.g., brand, production location, storage conditions) restricts feature-based modeling.
• Survey is limited to a single product type (flavoured milk) within Canada.

Provenance

Source

Canadian Food Inspection Agency

Collection Method

Laboratory analysis of collected food samples for specified microorganisms.

Time Range

April 1, 2017 to March 31, -2020

Freshness

Data covers period up to March 2020; last platform update was 2026-04-08.

Geography

Canada