| present status of trichinellosis in japan. | there have been three mass outbreaks of human trichinellosis in japan. the first was in 1974 in iwasaki, aomori prefecture, involving a group of hunters who ate raw meat of a black bear they had shot. of the 20 people who ate the bear meat raw, 15 showed clinical symptoms of trichinellosis. the second outbreak was experienced in sapporo, hokkaido, in 1980. the patients had eaten the raw meat of a brown bear served in a local restaurant. twelve people were diagnosed positive on the basis of clini ... | 1991 | 1822910 |
| survival of sylvatic trichinella spiralis isolates in frozen tissue and processed meat products. | the ability of trichinella spiralis larvae to survive at subfreezing temperatures encysted in the musculature of wild carnivorous mammals was assessed by evaluating motility and infectivity (to rodents) of trichinae at various intervals after storage in frozen skeletal muscle. fifty to 60% of the larvae in grizzly bear meat were alive after storage for 27 months at -6.5 to -20 c, and 30% to 50% were still alive at 34 months. however, none survived for 38 months, on the basis of infectivity in mi ... | 1986 | 3505925 |
| 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 |
| associations between trichinella species and host species in finland. | examination of 627 wild animals--raccoon dogs (nyctereutes procyonoides), red foxes (vulpes vulpes), european lynxes (lynx lynx), brown bears (ursus arctos), wolves (canis lupus), and badgers (meles meles)--revealed trichinella spp. the prevalence varied according to geographical region of finland (north; southwest, sw; and southeast, se) and was the highest among lynxes (70%, sw). the risk of trichinellosis was higher in the se (odds ratio, or, 19.4) and sw regions (or 14.3), as compared with t ... | 2002 | 12053985 |