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Increased outbreaks associated with nonpasteurized milk, United States, 2007-2012
Emerging Infectious Diseases
|December 23, 2014
Summary
Outbreaks from raw milk rose significantly in the US, with most linked to Campylobacter bacteria. Stricter enforcement of regulations on raw milk sales is recommended to improve public health and safety.
Area of Science:
- Foodborne illness epidemiology
- Public health surveillance
- Microbial food safety
Background:
- Nonpasteurized milk, also known as raw milk, has been associated with outbreaks of foodborne illness.
- Previous studies have indicated a risk of pathogen transmission through raw milk consumption.
- Monitoring trends in raw milk-associated outbreaks is crucial for public health policy.
Purpose of the Study:
- To analyze the trends and characteristics of outbreaks associated with nonpasteurized milk consumption in the United States.
- To identify the primary pathogens and sources contributing to these outbreaks.
- To inform regulatory strategies aimed at reducing the incidence of raw milk-related illnesses.
Main Methods:
- Retrospective analysis of outbreak data reported in the US from 2007 to 2012.
- Identification of outbreaks linked to nonpasteurized milk consumption.
- Categorization of outbreaks by causative agent and geographic origin of the milk.
Main Results:
- A notable increase in US outbreaks linked to nonpasteurized milk, rising from 30 (2007-2009) to 51 (2010-2012).
- Campylobacter species were identified as the predominant cause in 77% of outbreaks.
- A significant proportion (81%) of outbreaks involved milk purchased from states where its sale is legal, highlighting regulatory loopholes.
Conclusions:
- The incidence of outbreaks linked to nonpasteurized milk is increasing, posing a significant public health risk.
- Campylobacter infections represent a major concern associated with raw milk consumption.
- Enhanced enforcement of regulations governing the distribution and sale of nonpasteurized milk is essential to mitigate future outbreaks and protect consumer health.
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