title: High prevalence of human liver infection by Amphimerus spp. flukes, Ecuador.
abstract: Amphimerus spp. flukes are known to infect mammals, but human infections have not been confirmed. Microscopy of fecal samples from 397 persons from Ecuador revealed Opisthorchiidae eggs in 71 (24%) persons. Light microscopy of adult worms and scanning electron microscopy of eggs were compatible with descriptions of Amphimerus spp. This pathogen was only observed in communities that consumed undercooked fish.
authors.affiliation: Universidad Central del Ecuador Centro de Biomedicina, Quito, Ecuador. manuelcalvopina@gmail.com
authors.forename: Manuel
authors.initials: M
authors.lastname: Calvopiña
authors.forename: William
authors.initials: W
authors.lastname: Cevallos
authors.forename: Hideo
authors.initials: H
authors.lastname: Kumazawa
authors.forename: Joseph
authors.initials: J
authors.lastname: Eisenberg
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D002648:Child; D002675:Child, Preschool; D021821:Communicable Diseases, Emerging / Q000453:epidemiology / Q000469:parasitology; D004484:Ecuador / Q000453:epidemiology; D005260:Female; D005399:Fishes / Q000469:parasitology; D016266:Food Parasitology; D006801:Humans; D008109:Liver Diseases, Parasitic / Q000453:epidemiology* / Q000469:parasitology; D008297:Male; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D009890:Opisthorchidae / Q000302:isolation & purification / Q000648:ultrastructure; D015995:Prevalence; D014201:Trematode Infections / Q000453:epidemiology* / Q000469:parasitology; D055815:Young Adult