Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 27

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  Trichinella britovi
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The objective of the present survey was to establish the distribution of Trichinella species in red foxes in Estonia. Of 446 muscle samples from red foxes (Vulpes vulpes) collected in different regions of Estonia in a three-year period (2000-2002), Trichinella was recovered from 181 foxes (41%) by HCl-pepsin digestion. Of 121 Trichinella samples typed by multiplex-PCR, T. nativa and T. hritovi were identified in 61 (50%) and 47 (39%) foxes, respectively, whereas mixed infections with these two species were detected in 13 foxes (11%). T. nativa-infected foxes were originating from colder areas than those infected with T. britovi.
In Europe, Serbia ranks among countries with a high prevalence of Trichinella infection in pigs, which continues to be a serious human health problem. While in some Balkan countries, more than one Trichinella species/genotype has been described in both the sylvatic and domestic cycles, these data are lacking for Serbia. To date, only a few Serbian isolates of Trichinella have been genetically specified, and all were classified as T. spiralis. Although transmission of Trichinella from domestic pigs to wildlife could be assumed, neither the infection status nor the species of Trichinella circulating among wildlife in Serbia has been investigated. This study shows the presence of two Trichinella species, T. spiralis and T. britovi, in wild animals originating from five districts in Serbia, where Trichinella infections in domestic pigs and humans have been recorded. Trichinella spiralis was detected in jackals (n = 3), red foxes (n = 2) and a wild cat (n = 1). We also established that wolves (n = 4) and red foxes (n = 2) serve as sylvatic reservoirs for T. britovi. This is the first report on the presence of T. britovi in Serbia.
Pathomechanism of lesions in the course of trichinellosis was discussed, representing a sum of immunopathologicaI, pathomorphological and biochemical phenomena. Particular attention was devoted to clinical pathology of the visual organ, which prevails at the acute stage of trichinellosis. In evaluation of clinical signs/symptoms manifested in the visual organ traits of its anatomic, morphological structure, function of the eyeball muscles and eyeball vascular system were taken into account. Ocular lesions in the course of trichinellosis reflect in principle angiomyositis due to immunopathology resulting from migration of Trichinella larvae to many organs and to structures of visual system.
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Trichinellosis in Italy [1988-1993]

84%
Backround. Since Owen first described Trichinella as a human patogen in 1835, the number of organisms comprising this genus has grown dramatically. This etiological agent of human trichinellosis shows worldwide distribution in domestic and/or sylvatic animals. Material and method. The aim of the presented paper was to determine the distribution of Trichinella species in wild animals such as red foxes, wolves, wild boars, and domestic pigs in Poland. Muscle samples from diaphragm and forelegs were collected from animals killed by hunters. Muscle larvae were recovered from the muscle after artificial digestion and identified at the species level by RAPD, PCR-RPLF and multiplex PCR. Results. Of 75 nematode isolates from red foxes: (Vulpes vulpes), 50 resulted as T. britovi, 6 T. spiralis, 6 were mixed infections of these two species. Fifteen Trichinella isolates remained unidentified. Of 97 nematode isolates from wild boars (Sus scrofa), 21 resulted as T. britovi, 69 T. spiralis, 2 were mixed infections of these two species. Five Trichinella isolates remained unidentified. Of 6 examined wolves (Canis lupus) killed in the Bieszczady region, 3 animals were positive against T. britovi. Of 6 examined raccon dogs (Nyctereutes procyonoides) from Pomorskie region, 2 animals were positive against T. spiralis. Of 21 nematode isolates from domestic pigs, 1 resulted as T. britovi and 21 as T. spiralis. Up to date, two Trichinella species are detected as the etiological agents of epidemiology among domestic and wildlife animal in Poland: T. britovi is the dominant species in red foxes and T. spiralis is the dominant species in wild boars and domestic pigs.
Nematode worms of the genus Trichinella are one of the most widespread zoonotic pathogens. Natural transmission between hosts can only occur through the ingestion of infected meat. To date, two Trichinella species are known to be etiological agents of disease among domestic animals and wildlife in Poland: T. spiralis and T. britovi. In the last decades, since the administration of an oral vaccination against rabies, the red fox population in Poland has increased exponentially. The study area covers the Nowy Targ region: a mountainous area (585–1138 m above the sea) in southern Poland. Of 24 red foxes examined in the study, four were infected with Trichinella isolates: three were identified as T. britovi and one as T. pseudospiralis. The muscle of red foxes infected with T. britovi harboured 2.75, 3.11, 4.4 LPG and with T. pseudospiralis 0.36 LPG. Trichinella larvae were identified at species level by genomic and mitochondrial multiplex PCR, the products of which were sequenced for comparison with other sequences available in GenBank. The sequences obtained from the Polish T. pseudospiralis isolate, deposited in GenBank under the accession numbers JQ809660.1 and JQ809661.1, matched sequences already published in GenBank. Sequence comparison showed a 100% match with the large subunit ribosomal RNA gene of T. pseudospiralis isolate ISS 013, and a 96–95% match with those of T. pseudospiralis isolates ISS 141 and ISS 470. This is the first report of the identification of T. pseudospiralis larvae from red fox in Poland.
Trichinella larvae were detected in a marten (Martes martes) and a badger (Meles meles) in Poland. The animals were found dead following car accidents. All examined animals derived from the Mazurian Lake district, north-east Poland, near the village Kosewo Górne where Trichinella infection were earlier confirmed in wildlife; red foxes and wild boars. The muscle samples were examined by artificial pepsin-HCl digestion method. The parasites were identified as Trichinella britovi by multiplex polymerase chain reaction method. Larvae were found in two out of three martens and one out of seven examined badgers. This is the first report of the identification of Trichinella britovi larvae from martens and badgers in Poland.
Trichinellosis is one of the most frequent parasitic disease in Poland. Up to now, all animal and human trichinellosis infections in Poland have been considered to be caused by Trichinella spiralis in spite of only few isolates from humans and swine have been identified so far. From November 1994 to February 1995, 112 mammals belonging to 9 species were examined to detect Trichinella infection, and to identify the etiological agent at the species level. Muscle larvae of Trichinella sp. were isolated from 3 (27%) red foxes (Vulpes vulpes), 3 (13%) common shrews (Sorex araneus), and from 2 (20%) pygmy shrews (Sorex minutus). Only larvae from foxes have been identified by random amplified polymorphic DNA analysis as T. spiralis and T. britovi in one and two animals, respectively. As far as we know, this is the first report of T. britovi in Poland.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.