Showing papers on "Anisakis published in 1988"

Intestinal anisakiasis. A case diagnosed by morphologic and immunologic methods.

Abstract: The diagnosis of the fourth reported case of intestinal anisakiasis in the United States was based on the morphologic characteristics of the worm in histologic sections of resected ileum. Detection of antibodies to the worm by a radioallergo-sorbent test (RAST), enzyme-linked immunosorbent assay (ELISA), and an immunofluorescent antibody assay (IFA) support the diagnosis. IgE antibodies in patient serum reacted specifically to larval Anisakis antigens but not to larval Ascaris antigens in the RAST. IgG and IgM antibodies to larval Anisakis antigen could be detected by ELISA up to six months after infection. IFA findings demonstrated that patient serum recognized the excretory-secretory products produced by the worm and showed their presence in vivo . These products appear to originate from the excretory pore and dorsal esophageal gland of the larval parasite.

Anisakids and human anisakiasis. 2. Investigation of the anisakids of commercial fish in the district of Paris

Abstract: 1,173 fish belonging to 13 species were examined during 1986-1987, during a survey conducted among commercial marine fish in the Paris area (France). Anisakis simplex L3 were found in 10 different species, and most frequently in herring (Clupea harengus) 82.55% of 682 fish, red fish (Sebastes marinus) 86.11% of 36 fish, and hake (Merluccius merluccius) 88.57% of 35 fish, and in high number (average 8.8, 18.4 and 31 L3 per fish). Pseudoterranova decipiens L3 were recovered from 7 different species of fish but always in small amounts. Hysterothylacium spp. larvae were found in very high number out of 11 species of fish. They were inoculated to adult rats, but failed to develop. A 30 degree C temperature killed these larvae, avoiding any risk of human infestation. Few Contracaecum larvae were found in whiting (Merlangus merlangus).

Anisakids and human anisakiasis. 1. Bibliographic data

Abstract: Currently available data about larvae of Anisakidae (genera Anisakis, Pseudoterranova, Hysterothylacium and Contracaecum) from marine fishes are analysed. Hazard of such parasites for fish-consumers are emphasized.

Surface ultrastructure of larval Anisakidae (Nematoda: Ascaridoidea) and its identification by mensuration.

Abstract: The surface ultrastructure of larval Anisakis type I, Anisakis type II, Raphidascaris, Contracaecum type A, Thynnascaris type A and Thynnascaris type B was examined by scanning electron microscopy. These species were identified clearly by the presence of a boring tooth, a mucron, and other morphological features. The means of the distances between transverse striations (DBTS) of larval Anisakis type I (5.45 +/- 0.125 micron), larval Raphidascaris (2.92 +/- 0.051 micron), and larval Contracaecum type A (1.68 +/- 0.056 micron) are significantly different (p less than 0.05). There was a correlation between the diameter of worm trunk (DOWT) and DBTS among these three larval types. In most cases a larva could be identified from the mean value of DBTS and DOWT even if obtained as a fragment from a patient.

[Helminthic fauna of commercial fishes from the Saya-de-Malya bank (Indian Ocean)].

Abstract: The data on infestation of 8 species of commercial fishes from Saya-de-Malya bank (the Indian Ocean) are presented. 43 helminth species were identified: 10 Monogenea species, 18 trematode, 7 cestode and 8 nematode species. The mature worms are observed to be related to a certain host, whereas the nematode and cestode larvae have wide specificity. High infestation degree by Anisakis larvae is found in fishes, especially in Carangidae. At the bank area fishes are found to be free from Acanthocephala while those Acanthocephala are found in fishes from other areas of the Indian Ocean which may be attributed to the specific diet at the Saya-de-Malya bank. On the whole the helminth fauna of fishes examined at the Saya-de-Malya bank does not demonstrate the endemic pattern. The most specific helminth species were found in some fish species.

The parasite fauna of Stizostedion lucioperca from the bay waters of the Baltic coast of East Germany

Abstract: In pike-perches 20 species of parasites were stated: Protozoa (1), Monogenea (1), Cestoda (2), Trematoda (8), Nematoda (3), Acanthocephala (2), Hirudinea (1) and Crustacea (2). The high extent and intensity of parasitation Bunodera luciopercae in pike-perches of the Oder Bay are striking, a fact which may inhibit their growth and development. Parasitological investigation (infestation of pike-perch with Brachyphallus crenatus and Anisakis spec. larv.) has proved that about 75% of pike-perch migrate between the areas of the Peenestrom and the Bay of Greifswald. The high extent of Achtheres percarum infestation of fish causes serious damage to the gill filaments in a number of cases. The studies carried out to date have shown that parasite infestation of pike-perch has no negative effect on its edibility.

Morphological Classification and Infection Rate of Anisakid Larvae in Marine Fishes

Abstract: Anisakiasis occur after the ingestion of raw marine fish and squid containg anisakid larvae. In recent years about 40 cases of anisakiasis have been recorded in Korea. Considering, however, the Korean style of eating raw fish, many more cases would exist and prevention is necessary. We describe the infection rate of anisakid larvae in 13 species of marine fish and squid which were caught in the Korean sea. And each extracted larva is classified according to morphological characters. The results are following ; Scomber japonicus, Pseudosciaena manchurica, Trichiurus haumela showed high infection rate of anisakid larvae. Although Sepia esculenta showed low infection rate, most of anisakid larvae found in Sepia edulis are embedded in muscles. So relative high frequent rate of anisakiasis may developed by Sepia esculenta. Five type (Anisakis Type I, Terranova Type B, Raphidascaris sp., Contracaecum Type A, Contracaecum Type D) of anisakid larvae are classified according to their morphological characters.