2001
DOI: 10.4315/0362-028x-64.9.1320
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A Study of U.S. Orchards To Identify Potential Sources of Escherichia coli O157:H7

Abstract: The association of unpasteurized apple cider with Escherichia coli O157:H7 foodborne illness has led to increased interest in potential reservoirs of this pathogen in the orchard. Fourteen U.S. orchards were surveyed in autumn 1999 to determine the incidence and prevalence of E. coli O157:H7, E. coli, total aerobic microflora, and yeasts and molds. Fruit samples (n = 63) (eight apple and two pear varieties) and soil, water, and fecal samples were collected. Samples were plated on (i) tryptic soy agar for total… Show more

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Cited by 50 publications
(19 citation statements)
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“…For example, Sapers and others () have demonstrated greater attachment of E. coli in the stem and calyx regions, compared to any other areas of the fruit. Similarly, Riordan and others () reported high levels of pathogen populations in these areas of naturally contaminated apples.…”
Section: Resultsmentioning
confidence: 59%
“…For example, Sapers and others () have demonstrated greater attachment of E. coli in the stem and calyx regions, compared to any other areas of the fruit. Similarly, Riordan and others () reported high levels of pathogen populations in these areas of naturally contaminated apples.…”
Section: Resultsmentioning
confidence: 59%
“…This contributes to diminishing the environmental pollution from manure disposal (11). However, animal manure is a well-known source of foodborne pathogenic bacteria (32,33,35,37,46,51,61,63,65), and its inappropriate use in vegetable crops, especially organic ones, contributes a risk to consumer health. Research data and regulations recommend evaluating and normalizing the use of animal manure at the agricultural production (20,21).…”
Section: Introductionmentioning
confidence: 99%
“…those with modified or no cell wall) introduced into the stolons of strawberry plants not only remained viable but also moved freely within the plant tissues and into daughter plantlets (Ferguson eral., 2000). Intact fruit on trees have very low bacterial counts, and no evidence has been obtained to suggest that human pathogenic bacteria can internalize into produce during the ripening period (Riordan et al, 2001). However, apples soaked in suspensions of E. coil 0157:H7 readily take up the bacterium into the inner core tissues (Buchanan et al, 1999) and these bacteria survive biocidal washing (Burnett and Beuchat, 2002).…”
Section: Fruitmentioning
confidence: 97%