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Susceptibility and reaction of sheep to Trichinella pseudospiralis infection



Susceptibility and reaction of sheep to Trichinella pseudospiralis infection



Helminthologia 33(2): 67-71



The susceptibility and reaction of sheep to Trichinella pseudospiralis infection were followed for 247 days. Infection with 80,000 larvae resulted in the production of anti-Trichinella antibodies on Day 21 p. i. with titre of 1:200, which persisted until Day 42. On Day 32 p. i. larval Trichinella pseudospiralis were present in all nine muscles examined. They were increasing in number from Day 59 p. i., reaching a maximum on Day 115 p. i. in the masseter muscle, which is a predilection site for the localization of T. pseudospiralis larvae. None of the muscles showed the presence of live larvae on Day 247 p. i. Necrotized larvae were observed in sheep muscles from Day 32 p. i. Neither live nor necrotized larvae caused any cellular activation during the experiment. Necrosis of larvae and of surrounding muscle fascicles did not result in the formation of secondary connective tissues but in the regeneration of muscle tissues.

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Accession: 002973228

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