W L Payne

Center for Food Safety and Applied Nutrition

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R. R. Kifer

United States Department of Commerce

Walter E. Hill

United States Food and Drug Administration

M. E. Ambrose

United States Department of the Interior

Thomas A. Cebula

Johns Hopkins University

J. Eugene LeClerc

Center for Food Safety and Applied Nutrition

G. J. Jackson

United States Food and Drug Administration

B A Wentz

United States Food and Drug Administration

D. Craig Miller

University of Virginia

J A Jagow

United States Food and Drug Administration

Baoguang Li

Center for Food Safety and Applied Nutrition

Cooperative Institutions

United States Food and Drug Administration

Center for Food Safety and Applied Nutrition

Centers for Disease Control and Prevention

Food and Drug Administration

North Carolina State University

University of Maryland, College Park

United States Department of Commerce

University of Georgia

Walter Reed Army Institute of Research

University of Maryland, Baltimore

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W L Payne W L Payne

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Letter to the Editor: Subject: "Commercially Available, Edible Snails Otala lactea (Muller) and Helix aperta (Born) as Laboratory Hosts of Angiostrongylus cantonensis"

Journal of Parasitology (1978)

K Jindrák Malti G. Mansukhani Andrew Freiberg W L Payne G. J. Jackson

10.2307/3279606

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The nutritive content of menhaden (Brevoortia tyrannus and petronus) fish meal evaluated by chemical methods.

R. R. Kifer W L Payne D. Craig Miller M. E. Ambrose

Menhaden

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Survey of the U.S. Atlantic Coast Surf Clam, Spisula solidissima, and Clam Products for Anisakine Nematodes and Hyperparasitic Protozoa

Journal of Parasitology (1980)

W L Payne T. A. Gerding Russell G Dent J. W. Bier G. J. Jackson

Surf clams, Spisula solidissima, and processed surf clam products (that may also contain meat of the mahogany clam, Artica islandica) were examined for their parasite content. Of 3,358 raw clams collected on the U.S. Atlantic Coast from July 1976 through September 1977, 771 (23%) contained ani- sakine nematodes classified as a Sulcascaris sp. Of the 1,696 recovered anisakine nematodes, 15 (<1%) had discernible numbers of spores of a protozoan, Urosporidium spisuli; this represented a large decrease in the hyperparasitism observed during the previous 3 yr. The average number of nematodes per 100 clams was 51. Small clams contained fewer nematodes than large clams, and there was no seasonal fluc- tuation of incidence, indicating that the nematodes persist and accumulate in the clams. Southern clams contained more nematodes than northern clams; this geographical distribution corresponded to the dis- tribution of sea turtles, Chelonia mydas and Caretta caretta, believed to be definitive hosts of the ani- sakine nematode. The nematode was found in all parts of the clam, and its numbers in the edible and nonedible portions of clams were similar. Although most clams showed no gross tissue reactions to the nematode, there was thickening of clam tissue surrounding approximately 60 recovered nematodes; 16 nematodes were in individual cysts of clam origin. In 226 portions of 100-g amounts of canned clams, 10 nematodes or nematode fragments were recovered from 3.5% of the portions; nine nematodes or fragments were recovered from five of 229 portions (2.2%) of 100-g amounts of frozen, breaded clams. These figures represent a decrease in nematode contamination of processed clam products from preceding years.

10.2307/3280608

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Selenium content of fish meals. II

Feedstuffs (1969)

R. R. Kifer W L Payne M. E. Ambrose

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Recovery of parasitic nematodes from fish by digestion or elution

Applied and Environmental Microbiology (1981)

G. J. Jackson J. W. Bier W L Payne Foster D McClure

Two methods, digestion and elution, were used to recover parasitic nematodes from 470 flatfish belonging to species in the family Pleuronectidae. Samples of similar fish were collected from market lots; half of each sample was subjected to digestion, and half was subjected to elution (sedimentation). The edible (flesh) and the inedible (viscera) portions of each fish were analyzed separately. The total number of nematodes recovered by digestion was 1,110, which was not significantly greater than the 922 nematodes recovered by elution. However, digestion recovered 1,062 nematodes of the anisakine genera Anisakis and Phocanema, which are potentially pathogenic for human consumers of raw of semiraw fish. This number is significantly greater than the 608 pathogenic nematodes recovered by elution. Digestion also recovered 242 more nematodes from the edible flesh than did elution. Conversely, more nonpathogenic nematodes were recovered by elution. Approximately half the fish (240) had been collected in Boston markets, and the other half (230) had been collected in San Francisco markets. Fish from San Francisco each contained an average of eight nematodes, and those from Boston contained an average of less than one nematode per fish.

Digestion

Pleuronectidae

Flesh

10.1128/aem.41.4.912-914.1981

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Citations (35)

Detection and enumeration of virulent Yersinia enterocolitica in food by DNA colony hybridization

Applied and Environmental Microbiology (1983)

Walter E. Hill W L Payne C C Aulisio

A portion of a 44-megadalton plasmid found in Yersinia enterocolitica 8081 was used as a genetic probe to differentiate virulent and nonvirulent strains of the species. A DNA colony hybridization technique was employed. Three BamHI restriction endonuclease fragments labeled with 32P by nick translation were hybridized to lysed colonies of pure cultures, mixtures of virulent and nonvirulent cells, and portions of a food sample artificially contaminated with virulent Y. enterocolitica. The results of the colony hybridization test for virulence were the same as those obtained by the autoagglutination and suckling mouse tests. DNA colony hybridization detects pathogenic Y. enterocolitica in foods without the need for enrichment or pure cultures.

Yersinia enterocolitica

Yersiniosis

DNA–DNA hybridization

Hybridization probe

10.1128/aem.46.3.636-641.1983

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Simultaneous identification of strains of Escherichia coli serotype O157:H7 and their Shiga-like toxin type by mismatch amplification mutation assay-multiplex PCR

Journal of Clinical Microbiology (1995)

Thomas A. Cebula W L Payne Peter Feng

Mismatch amplification mutation assay primers, specific for a unique base substitution in uidA of Escherichia coli O157:H7, was coupled with primers for the Shiga-like toxin I (SLT-I) and SLT-II genes in a multiplex PCR assay. Analysis of 108 bacteria showed that all Escherichia coli serotype O157:H7 strains were identified simultaneously with the SLT types encoded by these strains.

Multiplex

10.1128/jcm.33.1.248-250.1995

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Citations (388)

Nutritive content of Atlantic sea herring (Clupea harengus) fish meal evaluated by chemical methods.

R. R. Kifer D. Craig Miller W L Payne M. E. Ambrose

Atlantic herring

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Isolation of Latin American epidemic strain of Vibrio cholerae 01 from US Gulf Coast

The Lancet (1992)