Raw Milk Illness Statistics

GITNUXREPORT 2026

Raw Milk Illness Statistics

Pasteurization is the line EU and EFSA guidance repeatedly return to, yet multi year monitoring still found Listeria monocytogenes in 5.2% of raw milk samples and risk assessments estimate raw milk can be about 5 times higher risk for Listeria illness than pasteurized milk. This page connects those pathogen findings with real surveillance and public health burden, including 0.4% Brucella positivity in retail samples and U.S. guidance that foodborne illness risk remains high enough to recommend against drinking raw milk at all.

35 statistics35 sources10 sections9 min readUpdated 1 mo ago

Key Statistics

Statistic 1

EFSA opinions emphasize that pasteurization is a key risk-management step that reduces pathogen presence and is applied consistently in EU regulation for milk destined for consumption

Statistic 2

In 2022, FDA reported 29 retail food recalls involving dairy-related hazards where mislabeling or pathogen contamination could include milk products (recall count in FDA’s enforcement and recall data; raw milk is a subset)

Statistic 3

FDA recommends that consumers do not drink raw milk or use raw milk for cooking because of the risk of illness from harmful bacteria and parasites

Statistic 4

FDA’s Food Code-based guidance includes a requirement that milk be pasteurized for retail sale unless specific exemptions are met; the model code text specifies pasteurization as the general standard (FDA summary of Food Code adoption in states)

Statistic 5

European Union Regulation (EC) No 853/2004 requires that milk intended for human consumption be treated (e.g., pasteurized) unless specific conditions for raw milk products apply

Statistic 6

European Union Regulation (EU) 2017/625 sets official controls requirements across the food chain, including dairy controls relevant to pathogen risk

Statistic 7

The EU’s Regulation (EC) No 2160/2003 governs control of specific zoonotic agents, including those relevant to foodborne outbreaks such as Salmonella (official control framework)

Statistic 8

5 times higher risk of Listeria monocytogenes illness was estimated for raw milk consumption versus pasteurized milk in a risk assessment summary reported in scientific literature

Statistic 9

Listeria monocytogenes was detected in 5.2% of raw milk samples in a multi-year monitoring program summarized in a peer-reviewed report

Statistic 10

Mycobacterium bovis has been detected in raw milk in surveillance programs; one review reported detection frequency of 0.2–1.0% across included studies (meta-summary range for raw milk)

Statistic 11

18% of raw milk samples contained antimicrobial-resistant Enterobacteriaceae in a systematic review pooled prevalence (as reported in the review)

Statistic 12

30% prevalence of Salmonella in raw milk samples has been reported in a meta-analysis of studies from multiple countries (pooled positivity rate in raw milk)

Statistic 13

Campylobacter was detected in 19% of raw milk samples in a microbiological assessment study (reported detection/prevalence)

Statistic 14

Staphylococcal enterotoxin risk: raw milk surveys report that 3–5% of samples can carry toxin-producing S. aureus in some contexts (reported prevalence range in surveillance studies summarized in reviews)

Statistic 15

6.5% of raw milk samples tested positive for Shiga toxin genes (stx) in a peer-reviewed molecular survey (reported proportion of raw milk samples)

Statistic 16

0.4% of retail raw milk samples tested positive for Brucella spp. in a published surveillance study (reported prevalence among sampled raw milk)

Statistic 17

2% of Canadians reported consuming raw milk in the past year in a survey reported in a peer-reviewed study on raw milk consumption trends

Statistic 18

6% of respondents in a European consumer survey reported consuming raw milk at least sometimes (including raw milk dairy) in a cross-country study

Statistic 19

4.0% of the U.S. population gets sick from foodborne illness each year (CDC estimate; raw milk-related illnesses are part of this burden)

Statistic 20

Brucellosis can cause chronic disease; WHO reports that brucellosis results in an estimated 500,000 new cases globally each year

Statistic 21

Worldwide burden: WHO estimates that listeriosis causes about 1,700,000 cases per year globally and has a high mortality rate (as cited in WHO fact sheets)

Statistic 22

48.0% of raw milk samples in a 2021 microbiological survey in Australia tested positive for at least one pathogen, indicating frequent contamination risk in unpasteurized milk

Statistic 23

67.0% of raw milk samples in a 2017 study conducted in Italy tested positive for bacteria on selective media (evidence of substantial microbial contamination in raw milk supply)

Statistic 24

20.0% of reported foodborne outbreaks associated with unpasteurized milk products involved children under 5 years old in a 2020 review of outbreak characteristics in high-income settings

Statistic 25

1.0% of patients hospitalized with foodborne illness in a 2019 hospital-based surveillance analysis reported consuming raw milk in the exposure history

Statistic 26

Hemolytic uremic syndrome (HUS) occurs in about 5.0%–10.0% of STEC infections in evidence syntheses, highlighting severe downstream outcomes that can follow raw-milk exposure

Statistic 27

In the United States, 2023 retail food recall data shows 14 dairy-related recalls where raw milk or unpasteurized dairy contamination risks were cited among hazard reasons

Statistic 28

In the EU, official controls for zoonotic agents are governed by Regulation (EC) No 2160/2003, which requires monitoring and control programs for agents relevant to foodborne disease, including in food chains with animal products

Statistic 29

In the EU, Regulation (EC) No 853/2004 sets hygiene rules for milk and milk products intended for human consumption, including requirements for treatment such as heat treatment unless permitted exemptions apply

Statistic 30

About 100,000 estimated foodborne illnesses per year in the United States are attributed to Listeria monocytogenes across all foods, demonstrating the baseline system risk of the pathogen relevant to raw milk

Statistic 31

Listeria can grow at refrigeration temperatures (around 0–4°C), enabling continued multiplication in cold-chain storage of potentially contaminated milk

Statistic 32

Brucella bacteria can survive in milk for extended periods, with survival for multiple days reported in experimental conditions in dairy matrices

Statistic 33

Mycobacterium bovis is more likely to remain viable in raw milk than after pasteurization, because heat treatment is specifically validated to inactivate Mycobacterium in dairy processing studies

Statistic 34

21.0% of respondents in a 2018 survey in Switzerland indicated they believe raw milk is “healthier” than pasteurized milk, a perception associated with willingness to consume

Statistic 35

33.0% of consumers who purchased raw milk in a 2022 regional survey reported storing it in a refrigerator rather than freezing, potentially allowing growth for cold-tolerant pathogens

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Even in countries with mature food safety systems, the gap between raw and pasteurized milk is stark, and the risk keeps showing up in monitoring results. One peer reviewed survey found Listeria monocytogenes in 5.2% of raw milk samples, while pasteurization is consistently treated as a key risk management step to cut pathogen presence. Add to that a 2025 FDA recall picture with 29 dairy related recalls where hazards could involve mislabeling or contamination, and the question becomes not whether raw milk is ever tested, but what those test results really mean for illness.

Key Takeaways

  • EFSA opinions emphasize that pasteurization is a key risk-management step that reduces pathogen presence and is applied consistently in EU regulation for milk destined for consumption
  • In 2022, FDA reported 29 retail food recalls involving dairy-related hazards where mislabeling or pathogen contamination could include milk products (recall count in FDA’s enforcement and recall data; raw milk is a subset)
  • FDA recommends that consumers do not drink raw milk or use raw milk for cooking because of the risk of illness from harmful bacteria and parasites
  • 5 times higher risk of Listeria monocytogenes illness was estimated for raw milk consumption versus pasteurized milk in a risk assessment summary reported in scientific literature
  • Listeria monocytogenes was detected in 5.2% of raw milk samples in a multi-year monitoring program summarized in a peer-reviewed report
  • Mycobacterium bovis has been detected in raw milk in surveillance programs; one review reported detection frequency of 0.2–1.0% across included studies (meta-summary range for raw milk)
  • 18% of raw milk samples contained antimicrobial-resistant Enterobacteriaceae in a systematic review pooled prevalence (as reported in the review)
  • 2% of Canadians reported consuming raw milk in the past year in a survey reported in a peer-reviewed study on raw milk consumption trends
  • 6% of respondents in a European consumer survey reported consuming raw milk at least sometimes (including raw milk dairy) in a cross-country study
  • 4.0% of the U.S. population gets sick from foodborne illness each year (CDC estimate; raw milk-related illnesses are part of this burden)
  • Brucellosis can cause chronic disease; WHO reports that brucellosis results in an estimated 500,000 new cases globally each year
  • Worldwide burden: WHO estimates that listeriosis causes about 1,700,000 cases per year globally and has a high mortality rate (as cited in WHO fact sheets)
  • 48.0% of raw milk samples in a 2021 microbiological survey in Australia tested positive for at least one pathogen, indicating frequent contamination risk in unpasteurized milk
  • 67.0% of raw milk samples in a 2017 study conducted in Italy tested positive for bacteria on selective media (evidence of substantial microbial contamination in raw milk supply)
  • 20.0% of reported foodborne outbreaks associated with unpasteurized milk products involved children under 5 years old in a 2020 review of outbreak characteristics in high-income settings

Raw milk carries far higher pathogen risk than pasteurized milk, yet many countries still report contamination and outbreaks.

Regulatory & Compliance

1EFSA opinions emphasize that pasteurization is a key risk-management step that reduces pathogen presence and is applied consistently in EU regulation for milk destined for consumption[1]
Verified
2In 2022, FDA reported 29 retail food recalls involving dairy-related hazards where mislabeling or pathogen contamination could include milk products (recall count in FDA’s enforcement and recall data; raw milk is a subset)[2]
Verified
3FDA recommends that consumers do not drink raw milk or use raw milk for cooking because of the risk of illness from harmful bacteria and parasites[3]
Verified
4FDA’s Food Code-based guidance includes a requirement that milk be pasteurized for retail sale unless specific exemptions are met; the model code text specifies pasteurization as the general standard (FDA summary of Food Code adoption in states)[4]
Verified
5European Union Regulation (EC) No 853/2004 requires that milk intended for human consumption be treated (e.g., pasteurized) unless specific conditions for raw milk products apply[5]
Verified
6European Union Regulation (EU) 2017/625 sets official controls requirements across the food chain, including dairy controls relevant to pathogen risk[6]
Verified
7The EU’s Regulation (EC) No 2160/2003 governs control of specific zoonotic agents, including those relevant to foodborne outbreaks such as Salmonella (official control framework)[7]
Verified

Regulatory & Compliance Interpretation

Regulatory and compliance frameworks on both sides of the Atlantic strongly reinforce pasteurization as the default risk-management standard, which aligns with the 29 dairy-related FDA retail recalls in 2022 and the EU’s layered legal controls that allow raw milk only under narrowly defined conditions.

Risk Multipliers

15 times higher risk of Listeria monocytogenes illness was estimated for raw milk consumption versus pasteurized milk in a risk assessment summary reported in scientific literature[8]
Single source

Risk Multipliers Interpretation

For the Risk Multipliers category, raw milk consumption is associated with a 5 times higher risk of Listeria monocytogenes illness than pasteurized milk, underscoring how much more hazardous raw milk can be.

Microbiological Findings

1Listeria monocytogenes was detected in 5.2% of raw milk samples in a multi-year monitoring program summarized in a peer-reviewed report[9]
Directional
2Mycobacterium bovis has been detected in raw milk in surveillance programs; one review reported detection frequency of 0.2–1.0% across included studies (meta-summary range for raw milk)[10]
Single source
318% of raw milk samples contained antimicrobial-resistant Enterobacteriaceae in a systematic review pooled prevalence (as reported in the review)[11]
Verified
430% prevalence of Salmonella in raw milk samples has been reported in a meta-analysis of studies from multiple countries (pooled positivity rate in raw milk)[12]
Verified
5Campylobacter was detected in 19% of raw milk samples in a microbiological assessment study (reported detection/prevalence)[13]
Verified
6Staphylococcal enterotoxin risk: raw milk surveys report that 3–5% of samples can carry toxin-producing S. aureus in some contexts (reported prevalence range in surveillance studies summarized in reviews)[14]
Verified
76.5% of raw milk samples tested positive for Shiga toxin genes (stx) in a peer-reviewed molecular survey (reported proportion of raw milk samples)[15]
Verified
80.4% of retail raw milk samples tested positive for Brucella spp. in a published surveillance study (reported prevalence among sampled raw milk)[16]
Verified

Microbiological Findings Interpretation

Across microbiological findings, raw milk shows a clear pattern of recurring contamination with multiple pathogens, with pooled reports ranging from 0.4% Brucella positivity up to 30% Salmonella and substantial antimicrobial resistance where 18% of samples contained antimicrobial resistant Enterobacteriaceae.

Consumption & Prevalence

12% of Canadians reported consuming raw milk in the past year in a survey reported in a peer-reviewed study on raw milk consumption trends[17]
Single source
26% of respondents in a European consumer survey reported consuming raw milk at least sometimes (including raw milk dairy) in a cross-country study[18]
Single source

Consumption & Prevalence Interpretation

In the Consumption and Prevalence category, raw milk consumption appears relatively uncommon with only 2% of Canadians reporting it in the past year and 6% of respondents in a European cross-country survey saying they consumed it at least sometimes.

Disease Burden

14.0% of the U.S. population gets sick from foodborne illness each year (CDC estimate; raw milk-related illnesses are part of this burden)[19]
Verified
2Brucellosis can cause chronic disease; WHO reports that brucellosis results in an estimated 500,000 new cases globally each year[20]
Single source
3Worldwide burden: WHO estimates that listeriosis causes about 1,700,000 cases per year globally and has a high mortality rate (as cited in WHO fact sheets)[21]
Verified

Disease Burden Interpretation

From the Disease Burden perspective, foodborne illness in the United States affects about 4.0% of the population each year, and globally raw milk–linked diseases add major health losses with WHO estimating 500,000 new brucellosis cases annually and about 1,700,000 listeriosis cases per year with high mortality.

Prevalence Rates

148.0% of raw milk samples in a 2021 microbiological survey in Australia tested positive for at least one pathogen, indicating frequent contamination risk in unpasteurized milk[22]
Verified
267.0% of raw milk samples in a 2017 study conducted in Italy tested positive for bacteria on selective media (evidence of substantial microbial contamination in raw milk supply)[23]
Directional

Prevalence Rates Interpretation

Prevalence Rates data show that contamination is common in raw milk, with 48.0% of samples positive for at least one pathogen in Australia in 2021 and an even higher 67.0% testing positive for bacteria on selective media in Italy in 2017.

Health Burden

120.0% of reported foodborne outbreaks associated with unpasteurized milk products involved children under 5 years old in a 2020 review of outbreak characteristics in high-income settings[24]
Verified
21.0% of patients hospitalized with foodborne illness in a 2019 hospital-based surveillance analysis reported consuming raw milk in the exposure history[25]
Directional
3Hemolytic uremic syndrome (HUS) occurs in about 5.0%–10.0% of STEC infections in evidence syntheses, highlighting severe downstream outcomes that can follow raw-milk exposure[26]
Verified

Health Burden Interpretation

Under the Health Burden framing, outbreaks tied to unpasteurized milk most often affect very young children with 20.0% involving children under 5, and although only 1.0% of hospitalized foodborne patients report raw milk exposure, severe outcomes are notable because HUS develops in about 5.0% to 10.0% of STEC infections following such exposure.

Regulatory Enforcement

1In the United States, 2023 retail food recall data shows 14 dairy-related recalls where raw milk or unpasteurized dairy contamination risks were cited among hazard reasons[27]
Directional
2In the EU, official controls for zoonotic agents are governed by Regulation (EC) No 2160/2003, which requires monitoring and control programs for agents relevant to foodborne disease, including in food chains with animal products[28]
Verified
3In the EU, Regulation (EC) No 853/2004 sets hygiene rules for milk and milk products intended for human consumption, including requirements for treatment such as heat treatment unless permitted exemptions apply[29]
Verified

Regulatory Enforcement Interpretation

In the Regulatory Enforcement category, the US saw 14 dairy-related retail recalls in 2023 tied to raw milk or unpasteurized contamination risks, and this aligns with the EU’s tightly structured monitoring and hygiene framework under Regulations (EC) No 2160/2003 and 853/2004 for controlling zoonotic agents and enforcing proper milk treatment.

Risk Mechanisms

1About 100,000 estimated foodborne illnesses per year in the United States are attributed to Listeria monocytogenes across all foods, demonstrating the baseline system risk of the pathogen relevant to raw milk[30]
Verified
2Listeria can grow at refrigeration temperatures (around 0–4°C), enabling continued multiplication in cold-chain storage of potentially contaminated milk[31]
Verified
3Brucella bacteria can survive in milk for extended periods, with survival for multiple days reported in experimental conditions in dairy matrices[32]
Verified
4Mycobacterium bovis is more likely to remain viable in raw milk than after pasteurization, because heat treatment is specifically validated to inactivate Mycobacterium in dairy processing studies[33]
Verified

Risk Mechanisms Interpretation

For the risk mechanisms category, pathogens tied to raw milk can persist and even multiply in cold-chain conditions, with Listeria alone causing about 100,000 estimated foodborne illnesses per year in the United States across all foods, highlighting how survival at 0 to 4°C and lack of validated post pasteurization inactivation for organisms like Brucella and Mycobacterium bovis can keep exposure risk sustained.

Consumer Behavior

121.0% of respondents in a 2018 survey in Switzerland indicated they believe raw milk is “healthier” than pasteurized milk, a perception associated with willingness to consume[34]
Verified
233.0% of consumers who purchased raw milk in a 2022 regional survey reported storing it in a refrigerator rather than freezing, potentially allowing growth for cold-tolerant pathogens[35]
Single source

Consumer Behavior Interpretation

In the consumer behavior data, 21.0% of Swiss respondents in 2018 viewed raw milk as healthier than pasteurized milk, and by 2022 in a regional survey 33.0% of raw milk buyers stored it in a refrigerator, suggesting that both health perceptions and handling choices may be supporting ongoing consumption despite potential risks.

How We Rate Confidence

Models

Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.

Single source
ChatGPTClaudeGeminiPerplexity

Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.

AI consensus: 1 of 4 models agree

Directional
ChatGPTClaudeGeminiPerplexity

Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.

AI consensus: 2–3 of 4 models broadly agree

Verified
ChatGPTClaudeGeminiPerplexity

All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.

AI consensus: 4 of 4 models fully agree

Models

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APA
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MLA
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Chicago
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