IFSAC released their 2024 report that looks at data through 2022. This is a distillation of that report to show the highlights. I think that the charts were the most informative part of this report.
IFSAC, an interagency group with CDC, FDA, and USDA-FSIS, estimates foodborne illness source attribution and provides timely estimates of the food sources of four priority foodborne pathogens: Salmonella, Escherichia coli O157 (E. coli), Listeria monocytogenes (Listeria), and Campylobacter. IFSAC considers these four pathogens to be priorities because of the frequency and severity of illness they cause, and because targeted interventions can significantly reduce these illnesses. Data come from 48,735 illnesses linked to 1,355 foodborne disease outbreaks that occurred from 1998 through 2022 The method relies most heavily on the last five years of outbreak data (2018–2022).
Each year in the United States an estimated 9 million people get sick, 56,000 are hospitalized, and 1,300 die of a foodborne disease caused by known pathogens.
Overall - Key results [per the report]
- The results are based on 1,010 outbreaks caused or suspected to be caused by Salmonella, 281 by E. coli O157, and 64 by Listeria.
- Estimated Salmonella illnesses were more evenly distributed across food categories than illnesses from E. coli O157, and Listeria; most of the illnesses for the latter pathogens were attributed to one or two food categories.
- The credibility intervals overlap for the Salmonella and Listeria categories with the highest attribution percentages, indicating no statistically significant difference between them.Salmonella
SalmonellaKey results
- Over 75% of illnesses were attributed to seven food categories: chicken, fruits, seeded vegetables (such as tomatoes), pork, other produce (such as nuts), beef, and turkey.
- The credibility intervals for each of the seven food categories that account for 79.7% of all illnesses overlap with the intervals of other categories.
E. coli O157Key results
- Over 85% of E. coli O157 illnesses were attributed to vegetable row crops (such as leafy greens) and beef.
- Vegetable row crops had a significantly higher estimated attribution percentage than all other categories.
- Beef had a significantly higher estimated attribution percentage than all categories other than vegetable row crops.
- No illnesses were attributed to eggs or oils-sugars.
Listeria monocytogenesKey results
- Over 75% of illnesses were attributed to dairy, vegetable row crops, and fruits.
- The credibility intervals for the dairy, vegetable row crops, fruits, and other produce categories were wide, partly due to the small total number of outbreaks (64).
- No illnesses were attributed to other meat/poultry, game, other seafood, grains-beans, oils-sugars, and seeded vegetables.
CampylobacterAttribution estimates for Campylobacter are not presented in this year's report. Evidence suggests the sources of Campylobacter outbreaks likely differ considerably from the sources of non-outbreak-associated illnesses caused by this pathogen.
https://www.cdc.gov/ifsac/php/data-research/annual-report-2022.html
Foodborne Illness Source Attribution Estimates – United States, 2022At a glance
- This report presents annual estimates of the percentages of foodborne illness attributed to 17 food categories for Salmonella, Escherichia coli O157, and Listeria monocytogenes.
- These estimates can inform food safety decision-making and provide pathogen-specific direction for reducing foodborne illness.
- Data come from 48,735 illnesses linked to 1,355 foodborne disease outbreaks that occurred from 1998 through 2022.
Executive summaryEach year in the United States an estimated 9 million people get sick, 56,000 are hospitalized, and 1,300 die of a foodborne disease caused by known pathogens. These estimates help highlight the scope of this public health problem. However, to develop effective prevention measures, food safety agencies and partners need to understand the types of foods contributing to the problem.