Published online May 20, 2016. doi: 10.5493/wjem.v6.i2.55
Peer-review started: November 19, 2015
First decision: February 2, 2016
Revised: March 14, 2016
Accepted: April 5, 2016
Article in press: April 6, 2016
Published online: May 20, 2016
Eurytremiasis is an important parasitic disease of cattle that was recently suggested to be a neglected and emerging human disease in Brazil. Based on a misinterpretation of the life cycle of the parasite, it was suggested that a great number of people could be infected with this fluke in the country. In the present letter, aspects of the life cycle of Eurytrema spp. are revisited and clarified. The mechanism of transmission previously reported for the few accidental human cases involved the ingestion of raw or undercooked insects (grasshoppers and crickets) harboring the infective metacercariae. In reality, the zoonotic potential of Eurytrema species is extremely low, and human eurytremiasis is not, and probably never will be, a zoonotic disease in countries where entomophagy is not a common food habit.
Core tip: In the present letter, the life cycles of species of Eurytrema, pancreatic flukes of ruminants, are revised. Given the transmission of the parasite by the ingestion of infected insects, we suggest that human eurytremiasis is not a zoonotic disease in countries where entomophagy is not a food habit. Therefore, eurytremiasis should not be considered a neglected or emerging disease in Brazil.