Korean J Parasitol.
2018 Apr;56(2):189-194. 10.3347/kjp.2018.56.2.189.
Hypolobocera guayaquilensis (Decapoda: Pseudothelphusidae): A New Crab Intermediate Host of Paragonimus mexicanus in Manabà Province, Ecuador
- Affiliations
-
- 1OneHealth Group, Escuela de Medicina, Facultad de Ciencias de la Salud, Universidad de las Americas (UDLA), Quito, Ecuador.
- 2Department of Ecology and Evolutionary Biology-Biodiversity Institute, University of Kansas, Lawrence, Kansas, USA.
- 3Facultad de Ciencias Biologicas, Universidad Central del Ecuador, Quito, Ecuador.
- 4Department of Microbiology and Immunology, Aichi Medical University School of Medicine, Aichi, Japan.
- 5Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan. hsugi@nih.go.jp
- KMID: 2412738
- DOI: http://doi.org/10.3347/kjp.2018.56.2.189
Abstract
- To determine that Paragonimus sp. is actively transmitted in a tropical area of the Pacific region of Ecuador where human cases of pulmonary paragonimiasis have recently been documented, a total of 75 freshwater crabs were collected from 2 different streams in the Pedernales area of Manabà Province, Ecuador. All collected crabs were identified as Hypolobocera guayaquilensis based on morphological characteristics of the male gonopods. The hepatopancreas of each crab was examined by compressing it between 2 glass plates followed by observation under a stereomicroscope. Excysted Paragonimus metacercariae were detected in 39 (52.0%) crabs and their densities varied from 1 to 32 per infected crab. There was a positive relationship between crab size and metacercarial density. Sequences of the second internal transcribed spacer region of the ribosomal RNA gene of the Paragonimus metacercariae obtained in this study were identical to those of Paragonimus mexicanus deposited in the DDBJ/EMBL/GenBank database. Thus, the present study is the first to confirm that the crab species H. guayaquilensis is the second intermediate host of P. mexicanus in Manabà Province, Ecuador. Because this crab might be the possible source of human infections in this area, residents should pay attention to improper crab-eating habits related with a neglected parasitic disease, i.e., paragonimiasis.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- A study on the infection status on intermediate hosts by Paragonimus on Che Ju Island
- Infestation status of Paragonimus westermani metacercariae in the second intermediate host in Ulchin county, Kyungpook Province
- Studies on the lungfluke, Paragonimus iloktsuenensis IV A mathematical analysis on metacercarial density of Paragonimus iloktsuenensis in crab host, Sesarma dehaani
- Indochinamon ou (Crustacea: Potamidae) as a New Second Intermediate Host for Paragonimus harinasutai in Luang Prabang Province, Lao PDR
- A note on intermediate hosts of Paragonimus in discrict of Seoul
