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Intensity of natural Trichinella spiralis and T. britovi infections in animal hosts of Extremadura (Spain) and its repercussion for diagnosis by direct methods



Intensity of natural Trichinella spiralis and T. britovi infections in animal hosts of Extremadura (Spain) and its repercussion for diagnosis by direct methods



Research and Reviews in Parasitology 58(2): 117-120



The level of Trichinella infection in 18 domestic pigs, 95 wild boars, 4 stray dogs and 6 foxes from Extremadura (Spain) was determined by HCl-pepsin digestion. Most animals showed low or mild levels of infections, ranging between 0.1 and 1750 larvae/g. Worm burdens closely fitted a lognormal frequency distribution. Trichinelloscopy results were closely correlated with the number of larvae/g, although 11 animals with 0.2 to 29 larvae/g were false negatives.

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