Artículos de revistas
First outbreak and subsequent cases of Trypanosoma vivax in the state of Goiás, Brazil
Primeiro surto e casos subsequentes de Trypanosoma vivax no Estado de Goiás, Brasil
Fecha
2017-07-01Registro en:
Revista Brasileira de Parasitologia Veterinaria, v. 26, n. 3, p. 366-371, 2017.
0103-846X
10.1590/S1984-29612017019
S1984-29612017000300366
2-s2.0-85030705609
S1984-29612017000300366.pdf
Autor
Universidade Federal de Goiás (UFG)
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Trypanosomiasis caused by Trypanosoma vivax has increased the reports in Brazil in the last decade. An outbreak is herein first reported in the state of Goiás, from May 2016 to January 2017. The outbreak start occurred in the city of Ipameri (Goiás) after the introduction of 18 auctioned cows from the state of Minas Gerais. Direct parasitological test (blood smears) and polymerase chain reactions targeting the catL genes diagnosed T. vivax infection. Fifty six cows from a herd of 161 were infected; 12 died during the outbreak and 44 animals persistently positive (by blood smears) even after chemical treatment were discarded. After this first case, five other cases were detected in state of Goiás. The spread of this disease can be linked to the commercialization of animals carrying T. vivax, allied to the iatrogenic transmission practice, using a single needle and syringe for all cows, during oxytocin administration before each milking.