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Foodborne intestinal flukes in Southeast Asia
- Source :
- The Korean journal of parasitology.
- Publication Year :
- 2009
-
Abstract
- In Southeast Asia, a total of 59 species of foodborne intestinal flukes have been known to occur in humans. The largest group is the family Heterophyidae, which constitutes 22 species belonging to 9 genera (Centrocestus, Haplorchis, Heterophyes, Heterophyopsis, Metagonimus, Procerovum, Pygidiopsis, Stellantchasmus, and Stictodora). The next is the family Echinostomatidae, which includes 20 species in 8 genera (Artyfechinostomum, Acanthoparyphium, Echinochasmus, Echinoparyphium, Echinostoma, Episthmium, Euparyphium, and Hypoderaeum). The family Plagiorchiidae follows the next containing 5 species in 1 genus (Plagiorchis). The family Lecithodendriidae includes 3 species in 2 genera (Phaneropsolus and Prosthodendrium). In 9 other families, 1 species in 1 genus each is involved; Cathaemaciidae (Cathaemacia), Fasciolidae (Fasciolopsis), Gastrodiscidae (Gastrodiscoides), Gymnophallidae (Gymnophalloides), Microphallidae (Spelotrema), Neodiplostomidae (Neodiplostomum), Paramphistomatidae (Fischoederius), Psilostomidae (Psilorchis), and Strigeidae (Cotylurus). Various types of foods are sources of human infections. They include freshwater fish, brackish water fish, fresh water snails, brackish water snails (including the oyster), amphibians, terrestrial snakes, aquatic insects, and aquatic plants. The reservoir hosts include various species of mammals or birds.The host-parasite relationships have been studied in Metagonimus yokogawai, Echinostoma hortense, Fasciolopsis buski, Neodiplostomum seoulense, and Gymnophalloides seoi; however, the pathogenicity of each parasite species and host mucosal defense mechanisms are yet poorly understood. Clinical aspects of each parasite infection need more clarification. Differential diagnosis by fecal examination is difficult because of morphological similarity of eggs. Praziquantel is effective for most intestinal fluke infections. Continued efforts to understand epidemiological significance of intestinal fluke infections, with detection of further human cases, are required.
- Subjects :
- food.ingredient
ved/biology.organism_classification_rank.species
Zoology
Trematode Infections
Fasciolidae
Metagonimus
food
Food Parasitology
Fasciolopsis
Echinostoma hortense
parasitic diseases
Animals
Humans
Asia, Southeastern
biology
ved/biology
Metagonimus yokogawai
Mini-Review
biology.organism_classification
Hypoderaeum conoideum
Haplorchis
Intestines
Infectious Diseases
Parasitology
Trematoda
Echinostoma
Subjects
Details
- ISSN :
- 17380006
- Database :
- OpenAIRE
- Journal :
- The Korean journal of parasitology
- Accession number :
- edsair.doi.dedup.....23f385b02edb9ccdaed877fcdb74ad92