2005
DOI: 10.1016/j.ijfoodmicro.2004.11.043
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Persistence of Escherichia coli O157:H7, Salmonella Newport, and Salmonella Poona in the gut of a free-living nematode, Caenorhabditis elegans, and transmission to progeny and uninfected nematodes

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Cited by 38 publications
(31 citation statements)
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“…As expected, the attachment of nonpathogenic E. coli OP50 was significantly lower than that of pathogenic E. coli (3.4 CFU/mL/worm and 3.5 CFU/mL/worm at day 1 and 3, respectively). Our finding is consistent with previous reports showing that a number of foodborne pathogens including Grampositive 12) and Gram-negative 15) strains can survive in the worm intestine. Taken together, these data indicate that pathogenic E. coli are highly resistant to digestion by C. elegans and they can colonize in the nematode intestine.…”
Section: Resultssupporting
confidence: 93%
“…As expected, the attachment of nonpathogenic E. coli OP50 was significantly lower than that of pathogenic E. coli (3.4 CFU/mL/worm and 3.5 CFU/mL/worm at day 1 and 3, respectively). Our finding is consistent with previous reports showing that a number of foodborne pathogens including Grampositive 12) and Gram-negative 15) strains can survive in the worm intestine. Taken together, these data indicate that pathogenic E. coli are highly resistant to digestion by C. elegans and they can colonize in the nematode intestine.…”
Section: Resultssupporting
confidence: 93%
“…The nematode Caenorhabditis elegans can ingest and excrete infectious bacteria (23,98,99) as well as Cryptosporidium parvum oocysts. Although the oocysts of Cyclospora are larger and may not be ingested by C. elegans, other, larger species of free-living nematodes could have a significant role in Cyclospora oocyst dissemination.…”
Section: Life Cyclementioning
confidence: 99%
“…Average D-values for the cattle, sheep, and swine manure for E. coli were calculated as 38, 36, and 26 days for the test conditions (Avery et al, 2004). In addition, E. coli O157:H7 has been shown to survive up to 28 days in significant numbers on farm structural surfaces that have contacted manure (Williams et al, 2005).…”
Section: Bacteriamentioning
confidence: 99%
“…Average D-values for the cattle, sheep, and swine manure for E. coli were calculated as 38, 36, and 26 days for the test conditions (Avery et al, 2004). In addition, E. coli O157:H7 has been shown to survive up to 28 days in significant numbers on farm structural surfaces that have contacted manure (Williams et al, 2005).However, plowing and harrowing of soil amended with naturally contaminated pig slurry effectively and rapidly (i.e., immediately) reduced populations of E. coli and Salmonella DT104 on a clay soil (Boes et al, 2005). In contrast, harrowing only, or surface application to winter wheat stands only, or injection in winter wheat stands only, prolonged survival of E. coli to 21 days, and Salmonella to 7 days.…”
mentioning
confidence: 99%