[Distribution of Paragonimus (Digenea: Troglotrematidae) in Antioquia Province, Colombia, based on metacercariae counts in freshwater crabs]. / Distribución parcial de Paragonimus (Digenea: Troglotrematidae) en Antioquia, por presencia de metacercarias en cangrejos dulciacuícolas.
Biomedica
; 28(4): 562-8, 2008 Dec.
Article
em Es
| MEDLINE
| ID: mdl-19462561
INTRODUCTION: Paragonimosis or lung fluke disease courses with signs similar to those seen in tuberculosis. The causative agent is a parasite of the genus Paragonimus (Digenea: Troglotrematidae). People become infected by ingesting raw or partially cooked crabs containing metacercariae. The first focus of human paragonimosis in Colombia was recorded in the county of Urrao, where two species of crabs infected with Paragonimus were found. In 2005, crabs with Paragonimus' metacercariae were captured near Medellín, western Colombia. This prompted a search for the parasite in other locations through its presence in the crabs. OBJECTIVE: To establish the distribution of Paragonimus in Antioquia, we evaluated the presence of metacercaria in freshwater brachyuran crabs. MATERIALS AND METHODS: From 2005 to 2007, crabs were captured in 13 counties of Antioquia. The crabs were relaxed and dissected to determine presence of trematodes and then to make the taxonomic identifications. RESULTS: From 52 crabs captured in 9 counties, 42 (80.8%) were found with Paragonimus metacercariae. The crabs were identified as Pseudothelphusidae in 2 genera--Hypolobocera and Strengeriana--and were assigned to four species. Three of the species were recorded for the first time as hosts of Paragonimus. CONCLUSIONS: A Paragonimus' distribution map was constructed for Antioquia; for the first time urban zones were included. Because of the high rate of infection, the handling and consumption of raw and poorly cooked crabs pose risk factors for human infection. Because crabs are affordable and provide means of easy diagnosis, crabs are targeted as primary agents of and diagnostic tools for paragonmosis.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Paragonimus
/
Parasitologia de Alimentos
/
Braquiúros
/
Água Doce
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
/
Humans
País/Região como assunto:
America do sul
/
Colombia
Idioma:
Es
Revista:
Biomedica
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Colômbia
País de publicação:
Colômbia