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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Freeze tolerance, morphology, and RAPD-PCR identification of Trichinella nativa in naturally infected arctic foxes.

Arctic foxes (Alopex lagopus) were collected from Greenland and Svalbard (N = 319). Twenty-four were infected with Trichinella (7.5%). Molecular analysis (random-amplified polymorphic DNA polymerase chain reaction) confirmed that all animals were infected with Trichinella nativa. Motile larvae were found in muscle tissue from all foxes after carcasses had been frozen for 1 yr at -18 C. Infective larvae were found in 2 foxes after a total of 4 yr storage at -18 C, which is longer than any previous observations. Morphological examination of the cysts showed large nurse cells and significant deposition of collagen and connective tissue. It is suggested that, within the geographical distribution of T. nativa, the more freeze-resistant isolates are found at higher latitudes.[1]

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