Taenia hydatigena en cerdo procedente de una zona rural del estado Yaracuy, Venezuela |	 Taenia hydatigena in pig from a rural area of Yaracuy state, Venezuela

Glenda Rojas; Eneida Rojas; Diana Cano; Robert Parkhouse; María Cortez

Taenia hydatigena en cerdo procedente de una zona rural del estado Yaracuy, Venezuela | Taenia hydatigena in pig from a rural area of Yaracuy state, Venezuela

Glenda Rojas, Eneida Rojas, Diana Cano, Robert Parkhouse, María Cortez

Resumen

El estadio de metacestodo de Taenia hydatigena se ha descrito en rumiantes domésticos y silvestres, suinos y equinos. La infección por este estadio tiene importancia económica y veterinaria a nivel mundial por su alto grado de patogenicidad en animales criados para consumo humano. En Venezuela se desconoce el impacto socio-económico de esta infección. La presente nota reporta el hallazgo de una estructura quística identificada como metacestodo de T. hydatigena en un cerdo procedente de una zona rural del estado Yaracuy. El quiste tenía aproximadamente 2,5 cm de largo y 1,0 cm de ancho, con un escólex interior y un fluido transparente. El suero de este animal resultó positivo para la detección por ELISA del antígeno HP10 de Taenia sp. Se necesitan más estudios para determinar la endemicidad de T. hydatigena en cerdos y en otras especies animales en Venezuela, ya que la alta reactividad cruzada entre T. hydatigena y T. solium podría causar confusión en el diagnóstico de la cisticercosis porcina por esta última especie, considerablemente de mayor importancia económica.

Palabras clave: Metacestodo, T. solium, ELISA, antígeno HP10, reactividad cruzada.

ABSTRACT

The metacestode stage of Taenia hydatigena has been described in wild and domestic ruminants, swine and equines. This larval cestode infection has economical importance due to its high pathogenicity in animals bred for human consumption. The socioeconomic impact of this infection is unknown in Venezuela. We report in this note the finding of a cyst structure, typical of the metacestode of T. hydatigena in a rural pig from Yaracuy state of Venezuela. The cyst was approximately 2.5 cm x 1.0 cm, with an interior scolex and a transparent cyst fluid. The serum of this animal was positive for the detection by ELISA of the specific antigen HP10 of Taenia sp. Further studies are needed to determine the endemicity of T. hydatigena in pigs and in other animal species in Venezuela as the high serological cross reaction between T. hydatigena and T solium, could cause confusion in the diagnosis of the considerably more economically important T. solium porcine cysticercosis.

Key words: Metacestode, T. solium, ELISA, HP10 antigen, cross reaction.

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