Presencia del gusano del pulmón, paragonimus mexicanus miyazaki & ishii, 1968 en tres municipios del estado Sucre Venezuela: descripción morfológica de la metacercaria, adulto y huevo | Presence of the lung fluke paragonimus mexicanus miyazaki & ishii 1968 in three municipalities of sucre State, Venezuela: morphological description of the metacercaria, adult and egg

Resumen

Se describe e identifica a Paragonimus mexicanus Miyazaki & Ishii, 1968 encontrados en ejemplares del cangrejo Eudaniela garmani y el rabipelado Didelphis marsupialis, recolectados en los municipios Sucre, Montes y Cajigal del estado Sucre, Venezuela. Se comparó con las especies latinoamericanas más cercanamente relacionadas, especialmente con P. kellicotti, P. caliensis y P. mexicanus. Se describen los estadios de huevo, miracidio, metacercaria y adulto encontrados en los hospederos naturales, haciendo énfasis en los sistemas reproductivos masculino y femenino. En Sucre, de 123 cangrejos, 5 (4,06%) resultaron positivos a la infección con metacercarias de P. mexicanus; en Montes, de 634 cangrejos, 114 (17,98%) resultaron positivos con metacercarias y en Cajigal, de 22 cangrejos, 5 (22,73%) resultaron positivos. En Sucre, de 15 rabipelados, 2 (13,33%) se encontraron positivos a la infección pulmonar por adultos de P. mexicanus; en Montes, de 69 examinados, 22 (31,88%) se encontraron positivos y en Cajigal, de 2 examinados, 1, resultó infectado.

Palabras clave: Paragonimus, estado Sucre, Eudaniela garmani, Didelphis marsupialis, Venezuela.

ABSTRACT

The lung fluke, Paragonimus mexicanus Miyazaki & Ishii, 1968 is described parasitizing the crab Eudaniela garmani and the opossum Didelphis marsupialis in three municipalities, Sucre, Montes and Cajigal from Sucre state, Venezuela. It was compared with the more closely related Latin American species, specially with P. kellicotti, P. caliensis and P. mexicanus. The stages of egg, miracidium, metacercariae and adult are described from their natural host, making emphasis in male and female reproductive systems. In the municipality of Sucre, from the 123 evaluated crabs, 5 (4.06%) were positively infected with metacercariae of P. mexicanus; in Montes, from 634 crabs, 114 (17.98%) were positively infected and in Cajigal, from 22 crabs, 5 (22.27%) were positively infected. In Sucre, from 15 opossums, 2 (13.33%) were positively infected with adults of P. mexicanus; in Montes, from 69 opposums, 22 (31.88%) were positively infected, and in Cajigal, from 2 opposums, 1 was positively infected.

Key words: Paragonimus, Sucre state, infection, Eudaniela garmani, Didelphis marsupialis, Venezuela.