Identification of African Paragonimidae by multivariate analysis of the eggs.
Acta Trop
; 72(1): 79-89, 1999 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-9924963
A study of metacercariae and adult Paragonimidae revealed the existence in West-Africa of four species, of which two are largely recorded in literature (Paragonimus africanus and Paragonimus uterobilateralis), one was suspected (Paragonimnus westermani-like) and one remained unrecorded in Africa (Euparagonimus sp). Among the two last ones, P. westermani-like was probably confused with P. africanus, and Euparagonimus sp. with P. uterobilateralis. P. westermani-like adult worms differed from P. africanus by the morphology of ovary, testes and the size of the metraterm eggs. Euparagonimus could be identified by a short excretory bladder in metacercariae. The discriminant functions established on eggs measurements (average, maximum and minimum length, average, maximum and minimum width) were able to separate the isolates into four groups. The largest eggs (97 x 59 microm) belonged to P. westermani-like, the medium sized eggs were ascribed to P. africanus (91 x 49 microm) and to Euparagonimus sp. (84 x 50 microm), and the smaller eggs (69 x 42 microm) were identified as P. uterobilateralis. Three Paragonimidae were identified in Cameroon: P. westermani-like, P. africanus and Euparagonimus sp. Additionally, P. uterobilateralis, P. westermani-like, and Euparagonimus sp. were found in the Congo, Gabon, and the Ivory Coast, respectively.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Paragonimiasis
/
Paragonimus
/
Infecciones por Trematodos
/
Troglotrematidae
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Animals
/
Humans
País/Región como asunto:
Africa
Idioma:
En
Revista:
Acta Trop
Año:
1999
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Países Bajos