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Comments on human eurytremiasis in Brazil.

Hudson Alves Pinto1, Alan Lane de Melo1

  • 1Hudson Alves Pinto, Alan Lane de Melo, Laboratório de Taxonomia e Biologia de Invertebrados, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 30123-970, MG, Brazil.

World Journal of Experimental Medicine
|May 27, 2016
PubMed
Summary

Human eurytremiasis, a parasitic disease, is unlikely to become a widespread zoonotic issue in Brazil. Clarified parasite life cycle reveals extremely low zoonotic potential, especially where insect consumption is uncommon.

Keywords:
EurytremaMetacercariaeParasite transmissionTropical medicineZoonosis

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Area of Science:

  • Veterinary Parasitology
  • Zoonotic Diseases
  • Foodborne Parasitology

Background:

  • Eurytremiasis, a parasitic disease in cattle, was recently proposed as a neglected and emerging human disease in Brazil.
  • This suggestion stemmed from a misinterpretation of the parasite's life cycle, implying widespread human infection risk.
  • Accidental human cases were linked to consuming insects containing infective metacercariae.

Purpose of the Study:

  • To revisit and clarify the life cycle of Eurytrema species.
  • To assess the actual zoonotic potential of Eurytrema species concerning human health.
  • To address the misconception regarding the public health threat of human eurytremiasis in Brazil.

Main Methods:

  • Re-evaluation of published data on the life cycle of Eurytrema spp.
  • Analysis of transmission routes for accidental human cases of eurytremiasis.
  • Comparative assessment of zoonotic potential based on host-parasite interactions and human consumption habits.

Main Results:

  • The life cycle of Eurytrema species was clarified, correcting previous misinterpretations.
  • The primary transmission route for accidental human cases involves ingesting raw or undercooked insects (grasshoppers, crickets) containing metacercariae.
  • The zoonotic potential of Eurytrema species is confirmed to be extremely low.

Conclusions:

  • Human eurytremiasis is not a significant zoonotic disease and is unlikely to become one in Brazil.
  • The risk of human infection is minimal in regions where entomophagy (insect consumption) is not a common practice.
  • Public health concerns regarding widespread human eurytremiasis are largely unfounded based on current understanding of the parasite's biology.