| 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 previou ... | 1999 | 10207384 |