Risk factors of Shiga toxin-producing Escherichia coli in livestock raised on diversified small-scale farms in California.
Epidemiol Infect
; 150: e125, 2022 06 01.
Article
in En
| MEDLINE
| ID: mdl-35641482
ABSTRACT
The increasing number of diversified small-scale farms (DSSF) that raise outdoor-based livestock in the USA reflects growing consumer demand for sustainably produced food. Diversified farms are small scale and raise a combination of multiple livestock species and numerous produce varieties. This 2015-2016 cross-sectional study aimed to describe the unique characteristics of DSSF in California, estimate the prevalence of Shiga toxin-producing Escherichia coli (STEC) in livestock and evaluate the association between risk factors and the presence of STEC in livestock, using generalised linear mixed models. STEC prevalence was 13.62% (76/558). Significant variables in the mixed-effect logistic regression model included daily maximum temperature (OR 0.95; CI95% 0.91-0.98), livestock sample source (cattle (OR 4.61; CI95% 1.64-12.96) and sheep (OR 5.29; CI95% 1.80-15.51)), multiple species sharing the same barn (OR 6.23; CI95% 1.84-21.15) and livestock having contact with wild areas (OR 3.63; CI95% 1.37-9.62). Identification of STEC serogroups of public health concern (e.g. O157H7, O26, O103) in this study indicated the need for mitigation strategies to ensure food safety by evaluating risk factors and management practices that contribute to the spread and prevalence of foodborne pathogens in a pre-harvest environment on DSSF.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Escherichia coli Infections
/
Shiga-Toxigenic Escherichia coli
/
Livestock
/
Farms
Type of study:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Animals
Country/Region as subject:
America do norte
Language:
En
Journal:
Epidemiol Infect
Journal subject:
DOENCAS TRANSMISSIVEIS
/
EPIDEMIOLOGIA
Year:
2022
Document type:
Article
Affiliation country:
Estados Unidos