- FDA has found that in this and past foodborne illness outbreak investigations "suggest that a likely contributing factor for contamination of leafy greens has been the proximity of cattle."
- FDA "recommends that all growers be aware of and consider adjacent land use practices, especially as it relates to the presence of livestock, and the interface between farmland, rangeland and other agricultural areas, and conduct appropriate risk assessments and implement risk mitigation strategies, where appropriate."
- "The 2020 E. coli O157:H7 outbreak associated with leafy greens represents the latest in a repeated series of outbreaks associated with leafy greens that originated in the Central Coast of California (encompassing Salinas Valley and Santa Maria) growing region."
- FDA "recommends that growers of leafy greens in the California Central Coast Growing Region consider this reoccurring E. coli strain a reasonably foreseeable hazard, and specifically of concern in the South Monterey County area of the Salinas Valley."
- FDA "also recommends that the agricultural community in the California Central Coast growing region work to identify where this reoccurring strain of pathogenic E. coli is persisting and the likely routes of leafy green contamination with STEC."
- FDA "alone cannot fix this issue. Industry leadership and collaboration among growers, processors, retailers, state partners and the broader agricultural community is critical to reducing foodborne illnesses. "
FDA Investigation Report: Factors Factors Potentially Contributing to the Contamination of Leafy Greens Implicated in the Fall 2020 Outbreak of E. coli O157:H7
FDA Leafy Greens STEC Action Plan
https://www.fda.gov/news-events/press-announcements/fda-releases-investigation-report-following-fall-2020-outbreak-e-coli-o157h7-illnesses-linked-leafy
FDA Releases Investigation Report Following Fall 2020 Outbreak of E. coli O157:H7 Illnesses Linked to Leafy Greens
Agency affirms need for new collaborative actions to build on accomplishments in its Leafy Greens Shiga Toxin-Producing E. coli (STEC) Action Plan
FDA Leafy Greens STEC Action Plan
https://www.fda.gov/news-events/press-announcements/fda-releases-investigation-report-following-fall-2020-outbreak-e-coli-o157h7-illnesses-linked-leafy
FDA Releases Investigation Report Following Fall 2020 Outbreak of E. coli O157:H7 Illnesses Linked to Leafy Greens
Agency affirms need for new collaborative actions to build on accomplishments in its Leafy Greens Shiga Toxin-Producing E. coli (STEC) Action Plan
For Immediate Release:
April 06, 2021
Statement From:
Deputy Commissioner for Food Policy and Response - Food and Drug Administration
Frank Yiannas
As part of our ongoing efforts to combat foodborne illness, today the U.S. Food and Drug Administration published a report on the investigation into the Fall 2020 outbreak of Shiga Toxin-Producing E. coli (STEC) O157:H7 illnesses linked to the consumption of leafy greens grown in the California Central Coast. The report describes findings from the investigation, as well as trends that are key to understanding leafy green outbreaks that are linked to the California Central Coast growing region, specifically encompassing the Salinas Valley and Santa Maria growing areas every fall since 2017.
We released our preliminary findings earlier this year that noted this investigation found the outbreak strain in a sample of cattle feces collected on a roadside about a mile upslope from a produce farm. This finding drew our attention once again to the role that cattle grazing on agricultural lands near leafy greens fields could have on increasing the risk of produce contamination, where contamination could be spread by water, wind or other means. In fact, the findings of foodborne illness outbreak investigations since 2013 suggest that a likely contributing factor for contamination of leafy greens has been the proximity of cattle. Cattle have been repeatedly demonstrated to be a persistent source of pathogenic E. coli, including E. coli O157:H7.
Considering this, we recommend that all growers be aware of and consider adjacent land use practices, especially as it relates to the presence of livestock, and the interface between farmland, rangeland and other agricultural areas, and conduct appropriate risk assessments and implement risk mitigation strategies, where appropriate. Increasing awareness around adjacent land use is one of the specific goals of the Leafy Greens Action Plan we released last March, which we’re also announcing is being updated today to include new activities for 2021.
During our analysis of outbreaks that have occurred each fall since 2017, we have determined there are three key trends in the contamination of leafy greens by E. coli O157:H7 in recent years: a reoccurring strain, reoccurring region and reoccurring issues with activities on adjacent land. The 2020 E. coli O157:H7 outbreak associated with leafy greens represents the latest in a repeated series of outbreaks associated with leafy greens that originated in the Central Coast of California (encompassing Salinas Valley and Santa Maria) growing region.
In the investigation, the FDA recommends that growers of leafy greens in the California Central Coast Growing Region consider this reoccurring E. coli strain a reasonably foreseeable hazard, and specifically of concern in the South Monterey County area of the Salinas Valley. It is important to note that farms covered by the Food Safety Modernization Act (FSMA) Produce Safety Rule are required to implement science and risk-based preventive measures in the rule, which includes practices that prevent the introduction of known or reasonably foreseeable hazards into or onto produce.
The FDA also recommends that the agricultural community in the California Central Coast growing region work to identify where this reoccurring strain of pathogenic E. coli is persisting and the likely routes of leafy green contamination with STEC. Specifically, we have outlined specific recommendations in our investigation report for growers in the California Central Coast leafy greens region. Those recommendations include participation in the California Longitudinal Study and the California Agricultural Neighbors workgroup. When pathogens are identified through microbiological surveys, pre-harvest or post-harvest testing, we recommend growers implement industry-led root cause analyses to determine how the contamination likely occurred and then implement appropriate prevention and verification measures.
We issued the Leafy Green Action Plan last year to foster a more urgent and collaborative approach to preventing leafy greens outbreaks caused by STEC. We have updated our plan for 2021 to include a renewed emphasis on actions to help prevent contamination from adjacent land, to include new actions that build on the accomplishments and learnings from the 2020 plan, and to renew our commitment to actions that were difficult to accomplish in 2020 due to challenges presented by the COVID-19 pandemic.
The FDA has made significant progress on our Leafy Greens Action Plan this year by enhancing prevention strategies, improving response activities by the agency and other entities, and identifying and addressing the knowledge gaps that exist around STEC contamination of leafy greens. We launched the California Longitudinal Study, developed an efficacy protocol for the development and registration of antimicrobial treatments for pre-harvest agricultural water and took critical steps to advance traceability of leafy greens. We have also conducted several focused inspections, follow-up investigations and sampling assignments.
Although the FDA is keenly focused on taking steps to help mitigate recurring leafy green contamination events, we alone cannot fix this issue. Industry leadership and collaboration among growers, processors, retailers, state partners and the broader agricultural community is critical to reducing foodborne illnesses. At the FDA, the safety of leafy greens remains a top priority, and we are committed to working with all stakeholders to address this significant public health issue and further protect consumers.
The FDA, an agency within the U.S. Department of Health and Human Services, protects the public health by assuring the safety, effectiveness, and security of human and veterinary drugs, vaccines and other biological products for human use, and medical devices. The agency also is responsible for the safety and security of our nation’s food supply, cosmetics, dietary supplements, products that give off electronic radiation, and for regulating tobacco products.
Center for Food Safety and Applied Nutrition
________________________________________
FDA Takes Two Important Steps to Advance the Safety of Leafy Greens April 6, 2021
Today, the U.S. Food and Drug Administration is taking two important steps to advance the safety of leafy greens. The first is the release of a report on the investigation into the Fall 2020 outbreak of E. coli O157:H7 illnesses linked to the consumption of leafy greens. The report describes findings from the investigation, as well as trends key to understanding leafy greens outbreaks linked to the California Central Coast growing region (encompassing the Salinas Valley and Santa Maria growing areas) that have occurred every fall since 2017. In addition, the FDA is also releasing an updated version of the Leafy Green Shiga-toxin producing E. coli (STEC) Action Plan, reaffirming the need for collaborative action to improve the safety of leafy greens, and building on the work accomplished in 2020.
Investigation Report
Between August and December 2020, the FDA and multiple state and federal partners were involved in an investigation into an outbreak of E. coli O157:H7 illnesses associated with the consumption of leafy greens. The outbreak caused 40 illnesses across 19 states, resulting in 20 hospitalizations, including four cases of hemolytic uremic syndrome (HUS), a type of kidney failure.
During the traceback investigation the outbreak was linked via whole genome sequencing (WGS) to outbreaks associated with the consumption of leafy greens grown in California’s Central Coast growing areas that have occurred every fall since 2017. Using the information learned during traceback, along with data collected in response to previous outbreaks, the FDA was able to narrow the scope of the investigation to fields in the Salinas Valley growing area of California. The FDA, in collaboration with California state partners, investigated several farms with fields linked through traceback; we identified the outbreak strain in one cattle feces composite sample taken alongside a road approximately 1.3 miles upslope from a produce farm with multiple fields linked to the outbreak through traceback. In addition, several other samples tested positive for other STEC strains, including E. coli O157:H7. While no direct source or route of contamination was identified, the investigation provided insights into potential sources of contamination, including livestock activities on adjacent land.
Reoccurring outbreak strain, growing region, and concerns with the potential impacts of adjacent lands
The FDA analyzed outbreaks that had occurred each fall since 2017 in light of the findings of this investigation and found three key trends in the contamination of leafy greens by E. coli O157:H7 in recent years: a reoccurring strain, reoccurring region and reoccurring concerns with the potential impacts of adjacent lands. This reoccurring pathogenic E. coli strain therefore appears to be a reasonably foreseeable hazard in the California Central Coast leafy greens growing region, and specifically of concern in the South Monterey County area of the Salinas Valley growing area. Farms subject to the FSMA Produce Safety Rule are required to take all measures reasonably necessary to identify, and not harvest, produce that is likely to be contaminated with a known or reasonably foreseeable hazard.
Between August and December 2020, the FDA and multiple state and federal partners were involved in an investigation into an outbreak of E. coli O157:H7 illnesses associated with the consumption of leafy greens. The outbreak caused 40 illnesses across 19 states, resulting in 20 hospitalizations, including four cases of hemolytic uremic syndrome (HUS), a type of kidney failure.
During the traceback investigation the outbreak was linked via whole genome sequencing (WGS) to outbreaks associated with the consumption of leafy greens grown in California’s Central Coast growing areas that have occurred every fall since 2017. Using the information learned during traceback, along with data collected in response to previous outbreaks, the FDA was able to narrow the scope of the investigation to fields in the Salinas Valley growing area of California. The FDA, in collaboration with California state partners, investigated several farms with fields linked through traceback; we identified the outbreak strain in one cattle feces composite sample taken alongside a road approximately 1.3 miles upslope from a produce farm with multiple fields linked to the outbreak through traceback. In addition, several other samples tested positive for other STEC strains, including E. coli O157:H7. While no direct source or route of contamination was identified, the investigation provided insights into potential sources of contamination, including livestock activities on adjacent land.
Reoccurring outbreak strain, growing region, and concerns with the potential impacts of adjacent lands
The FDA analyzed outbreaks that had occurred each fall since 2017 in light of the findings of this investigation and found three key trends in the contamination of leafy greens by E. coli O157:H7 in recent years: a reoccurring strain, reoccurring region and reoccurring concerns with the potential impacts of adjacent lands. This reoccurring pathogenic E. coli strain therefore appears to be a reasonably foreseeable hazard in the California Central Coast leafy greens growing region, and specifically of concern in the South Monterey County area of the Salinas Valley growing area. Farms subject to the FSMA Produce Safety Rule are required to take all measures reasonably necessary to identify, and not harvest, produce that is likely to be contaminated with a known or reasonably foreseeable hazard.
Recommendations
The FDA recommends that the agricultural community in the California Central Coast growing region work to identify where this reoccurring strain of pathogenic E.coli is persisting and the likely routes of leafy green contamination with STECs. In the report, the FDA encourages producers in the Central Coast of California growing region to participate in the California Longitudinal Study, and in the locally-led, locally-convened California Agricultural Neighbors (CAN) workgroup. In addition, when pathogens are identified through microbiological surveys, pre-harvest or post-harvest testing, we recommend growers implement industry-led root cause analyses to determine how the contamination likely occurred and then implement appropriate prevention and verification measures.
The FDA recommends that the agricultural community in the California Central Coast growing region work to identify where this reoccurring strain of pathogenic E.coli is persisting and the likely routes of leafy green contamination with STECs. In the report, the FDA encourages producers in the Central Coast of California growing region to participate in the California Longitudinal Study, and in the locally-led, locally-convened California Agricultural Neighbors (CAN) workgroup. In addition, when pathogens are identified through microbiological surveys, pre-harvest or post-harvest testing, we recommend growers implement industry-led root cause analyses to determine how the contamination likely occurred and then implement appropriate prevention and verification measures.
Leafy Greens STEC Action Plan
The FDA recognizes that more work is needed from all leafy greens stakeholders to advance the vision outlined in the Leafy Green STEC Action Plan. Originally released in March 2020, the action plan was designed to foster a more urgent and collaborative approach to preventing leafy greens outbreaks caused by STEC. Progress made to date includes the launch of the California Longitudinal Study, the development of an efficacy protocol to aid in the development and registration of antimicrobial treatments for pre-harvest agricultural water, and several focused inspections, follow-up investigations, sampling assignments, and critical steps taken to advance traceability of leafy greens.
Building on this work, the FDA released an updated version of the Leafy Green STEC Action Plan today which reaffirms our commitment to advancing leafy greens safety. The updated plan includes a renewed emphasis on actions to prevent contamination stemming from activities on adjacent land, announces new actions that build on the accomplishments and learnings from the 2020 plan, and renews our commitment to completing certain actions that were difficult to accomplish in 2020 due to challenges presented by the COVID-19 pandemic.
Shared Responsibility
We know that we cannot fix the issue of leafy green contamination on our own. Recognizing the interconnection between people, animals, plants, and their shared environment, we strongly encourage collaboration to address the issues contributing to produce contamination. Industry leadership, along with collaboration among growers, processors, retailers, state partners and the broader agricultural community, is critical to establishing needed prevention measures and preventing foodborne illness.
For More Information
• E. coli and Foodborne Illness
The FDA recognizes that more work is needed from all leafy greens stakeholders to advance the vision outlined in the Leafy Green STEC Action Plan. Originally released in March 2020, the action plan was designed to foster a more urgent and collaborative approach to preventing leafy greens outbreaks caused by STEC. Progress made to date includes the launch of the California Longitudinal Study, the development of an efficacy protocol to aid in the development and registration of antimicrobial treatments for pre-harvest agricultural water, and several focused inspections, follow-up investigations, sampling assignments, and critical steps taken to advance traceability of leafy greens.
Building on this work, the FDA released an updated version of the Leafy Green STEC Action Plan today which reaffirms our commitment to advancing leafy greens safety. The updated plan includes a renewed emphasis on actions to prevent contamination stemming from activities on adjacent land, announces new actions that build on the accomplishments and learnings from the 2020 plan, and renews our commitment to completing certain actions that were difficult to accomplish in 2020 due to challenges presented by the COVID-19 pandemic.
Shared Responsibility
We know that we cannot fix the issue of leafy green contamination on our own. Recognizing the interconnection between people, animals, plants, and their shared environment, we strongly encourage collaboration to address the issues contributing to produce contamination. Industry leadership, along with collaboration among growers, processors, retailers, state partners and the broader agricultural community, is critical to establishing needed prevention measures and preventing foodborne illness.
For More Information
• E. coli and Foodborne Illness
No comments:
Post a Comment