| the ecology of echinococcus multilocularis (cestoda: taeniidae) on st. lawrence island, alaska. ii. helminth populations in the definitive host. | the helminths of 1,579 arctic foxes from st. lawrence island were investigated by standard methods. the foxes, obtained mainly during the winter from fur trappers, harbored 22 species of helminths. four of those were trematodes, viz., maritrema afanassjewi belopol'skaia, 1952, orthosplanchnus pygmaeus iurakhno, 1967, plagiorchis elegans (rudolphi, 1802) and alaria marcianae (larue, 1917), each of which occurred in a single host. two species of cestodes, diphyllobothrium dendriticum (nitzsch, 182 ... | 1990 | 2080830 |
| prevalence of trichinella nativa in lynx (felis lynx) from alaska, 1988-1993. | lynx (felis lynx) carcasses were collected during the 1989 to 1990 through 1992 to 1993 trapping seasons in alaska (usa). seven areas were represented. tongue samples were removed from 1,065 carcasses. specimens were examined for the presence of trichinella nativa larvae by means of enzymatic digestion. overall prevalence was 21%. both prevalence and number of larvae per gram of host tissue were directly related to age of the host. age-specific prevalence ranged from 4% for kittens up to 59% for ... | 1995 | 8592350 |
| autochthonous and imported trichinella isolates in germany. | the study of trichinella isolates from wildlife in germany revealed the presence of trichinella spiralis and trichinella britovi in wild boars and foxes. t spiralis was detected in meat products imported from spain, which is one of the two endemic areas of domestic trichinellosis in the european union: it was also detected in meat from a grizzly bear marketed in alaska, and trichinella nativa was detected in a polar bear from the berlin zoo. these results stress the importance of examining for t ... | 2000 | 10622607 |
| molecular identification of natural hybrids between trichinella nativa and trichinella t6 provides evidence of gene flow and ongoing genetic divergence. | to date, there are no data available on the population genetics of trichinella due to the lack of genetic markers and the difficulty of working with such small parasites. in the arctic region of north america and along the rocky mountains, there exist two genotypes of trichinella, trichinella nativa and trichinella t6, respectively, which are well differentiated by biochemical and molecular characters. however, both are resistant to freezing, show other common biological characters (e.g. low or ... | 2003 | 12633658 |
| occurrence and genotypic analysis of trichinella species in alaska marine-associated mammals of the bering and chukchi seas. | the zoonotic parasite trichinella is the causative agent of trichinellosis outbreaks in the circumpolar arctic. subsistence communities are particularly prone to trichinellosis due to traditional meat preparation methods and regional presence of a freeze-tolerant trichinella species (trichinella nativa). this study is the first application of a validated artificial digestion method in determining incidence of trichinella sp. in alaskan mammals. infection incidence in pinniped species (erignathus ... | 2014 | 24373515 |